Repair Forum     Repair Center    Blog
Check Order Status > Sign In Support Shopping Cart
Authentic Parts
866-802-6383      Call us toll free
8:00AM-10:00PM Mon-Fri, EST
9:00AM-8:00PM Sat, EST
Repair Parts Home    Lawn Equipment Parts    Ryobi Parts    Ryobi Trimmer Parts    Ryobi CS30 (RY30000A) String Trimmer Parts
Ryobi CS30 (RY30000A) String Trimmer

 Ryobi CS30 (RY30000A) String Trimmer Parts

Upper Shaft Assembly
Engine Assembly
Lower Shaft Assembly
   Upper Shaft Assembly   

 Fig # Part # Img Part Name Availability Price Qty
A1984032002
Warning Decal
In stock
3 available
 $0.86
A2000998353
Upper Boom And Cable Assembly (Fits Models CS 30 And SS 30) Obsolete - Not Available
Discontinued
$0.00N/A
A3984102002
Warning Decal (BC)
In stock
3 available
 $0.86
A4985382001
Handle Assembly (W/Out Screws)
In stock
16 available
 $11.09
A582589
Screw (10-14 x 1 in.)
In stock
5 available
 $0.86
A6PS06258
Trigger Lock
In stock
5 available
 $0.86
A7PS06259
Trigger
In stock
9 available
 $1.19
A8UP03210
Spring, Throttle
In stock
24 available
 $0.66
A9678252001
Compression Spring
In stock
7 available
 $0.86
A10985835001
Ring Guard
In stock
17 available
 $1.10
A11308487001
Shoulder Strap (BC)
In stock
25+ available
 $13.50
A12PS02764
Switch (Momentary Contact)
In stock
4 available
 $1.68
A13PA00387
Lead Assembly
In stock
1 available
 $3.01
A1482538
Screw (ST-155)
In stock
25+ available
 $0.86
A15PS01177
Throttle Cable 15"
In stock
10 available
 $3.36
Fig #Part #ImgPart NameAvailabilityPrice
A16985157001
Logo Plate
In stock
3 available
 $0.86
A17099078001039
Hanger Cap
In stock
25+ available
 $0.86
A18A08130
"J" Handle And Grip (BC)
In stock
4 available
 $7.70
A1983009
Lock Washer (BC)
In stock
3 available
 $3.62
A2082278
Screw-Hex Hd. (1/4-20 X 1 1/2")
In stock
2 available
 $0.86
A2182496
Screw (BC)
In stock
3 available
 $0.86
A22099075001007
Handle Bar Clamp
Note: Quantity of 2 needed for whole clamp
In stock
8 available
 $1.72
A2384004
Washer (BC)
In stock
3 available
 $0.86
A2481242
Hex Nut (BC)
In stock
2 available
 $0.86
A25308472001
Front Handle Assembly (CS30 And SS30)
In stock
15 available
 $9.65
A26PA00249
Fastener Parts Kit Obsolete - Not Available
Discontinued
$0.00N/A
A27984240001
On/Off Label
Ships in 5 - 10 business days
 $0.86
A28985162001
Model Label (CS30)
Ships in 5 - 10 business days
 $0.86
A29985163001
Model Label (SS30)
In stock
2 available
 $0.86
A30985164001
Model Label (BC30)
Ships in 5 - 10 business days
 $0.86
Fig #Part #ImgPart NameAvailabilityPrice
A31985595001
Decal, Primer
In stock
5 available
 $0.86
A32985593001
Choke Label
In stock
23 available
 $0.86
A33985592001
Starting Label
In stock
19 available
 $0.86
A983000401
Operator's Manual
In stock
3 available
 $1.52
A983000462
Customer Sheet Obsolete - Not Available
Discontinued
$0.00N/A

Enter your engine's type number in this search field to show the parts that match your engine.

Your engine's type number is the second part of the model number stamped on your Briggs & Stratton engine (see picture).

Important note:

There are a number of different Ryobi trimmers that use the CS30 designation. Please check your model number (beginning with RY) and be sure it corresponds with the model number shown on this breakdown. You can click the Versions tab at the top of this page to view other possible matches.
Trimmer Parts

Repair Articles

How to Test a Small Engine for Spark
How to Test a Small Engine for Spark

If your small engine isn't starting, you'll need to diagnose many issues including the spark plug. This video walks you through the steps of how to test for a spark using a spark tester.
Quick Fix: How to Clean a Spark Arrestor Screen on a Small 2-Cycle Engine
Quick Fix: How to Clean a Spark Arrestor Screen on a Small 2-Cycle Engine

This repair article will instruct you how to repair a dirty or damaged spark arrestor on your small engine.
How to Replace the Drive Shaft on a String Trimmer
How to Replace the Drive Shaft on a String Trimmer

Learn how to properly replace the drive shaft on your string trimmer in less than 30 minutes.
Quick Fix: How to Replace the Spark Plug in a Small Engine
Quick Fix: How to Replace the Spark Plug in a Small Engine

This article will help you replace the spark plug on a small engine which will help get your gas powered equipment up and running again.
Discussion
Discussion for the Ryobi CS30 (RY30000A) String Trimmer

Post a Comment
Login or signup to comment.
Login or signup to comment.
Ask a question, answer a question, or post a comment!
  • Subject:
  •  
  • Comment:
  •  
I have a fairly new Ryobi cs30 string trimmer. It worked fine last week, but today when I wanted to start it, the pull cord came all the way out and back in without resistance. I watched the video on how to replace the spring and figured I could do that. But in my case, the spring apparently is okay. So, what part is failing on my unit and is it easily fixable?

Terry
ShotOut
Reply: Ryobi String Trimmer Pull Start ...

ShotOut

Hello 1309708 It sounds like the pawls in the starter that pop out and engage the flywheel are stuck or are broken. If they are, you are going to need another recoil unit. Pull the starter off the unit and flip it over. Pull the cord and look for the little pawls to pop out. If they pop out when you pull the cord, then there was something jamming them while it was on the machine or the engagement tabs on top of the flywheel are bad.
Terryv6
Reply: Ryobi String Trimmer Pull Start ...

Terryv6

Thanks. As a non-small engine expert, I'll give this a look. The dismantle video looked like it was do-able for me to try. I doubt if it is cost effective to take in for repair. I'll check on part replacement costs too. I see at Fleet Farm, they have homelites on sale for $60, but I'd rather fix this for less, if possible. Let you know.....

Terry
killhigh
Question: Spring

killhigh

if part is discontinued where do I find the spring?
WJA
Reply: Spring

WJA

Hello killhigh,

Since I don't know the size of the 984106001 Spring. The 537338801 Poulan Spring might be able to be used. It measures 2 inches long and about 3/4 inch wide.

-WJA
njones
Question: Fuel Filter

njones

just making sure the fuel tank comes with a filter and tubing to run to the carburetor
WJA
Reply: Fuel Filter

WJA

Hello njones,

The Fuel Tank, part number 308181004 does include the fuel lines, fuel filter and fuel cap.

-WJA
1201933
Question: Ryobi CS30 Primer

1201933

My primer has a slit in it. I can't seem to find the part number for replacement primer?

Ryobi CS30 weedeater

Thanks!
WJA
Reply: Ryobi CS30 Primer

WJA

Hello 1201933,

The primer bulb that would fit the carburetor for your Ryobi CS30 Trimmer is part number 561635001. They are in stock and ready to ship to you.

-WJA
kronald85
Reply: Ryobi CS30 Primer

kronald85

Thanks for the quick response!
ediebb
Question: Starter Assembly

ediebb

the problem i am having with my cs30 is that the spring ( not part #41) pulled out of part #40 ( it had a straight part that comes up and through part #308374001 is bent and pulled out...I bent it back and reassembled only to have it bend and pull out again after 3 or 4 pulls) does this spring come already attatched to part #308374001 or do i have to order it seperate? and if so may i have the part number and cost so that I may order it with the starter pulley...i figure get both new ( as spring is prob weaker now that it has been bent a cople times) and solve the problem all at once. Thank you and I await your response.
WJA
Reply: Starter Assembly

WJA

Hello ediebb,

The part number 308374001 starter pulley does include the spring with it. Also we have prepared an article and video that I hope will help you with the problems you are having.
Here is the link to it.

How to Fix the Starter on a Ryobi Trimmer

Hope this helps,
-WJA
WJA
Reply: Starter Assembly

WJA

Hello ediebb,

The part number 308374001 starter pulley does include the spring with it. Also we have prepared an article and video that I hope will help you with the problems you are having.
Here is the link to it.

How to Fix the Starter on a Ryobi Trimmer

Hope this helps,
-WJA
1080997
Question: Ryobi Wont Start

1080997

inherited a ryobi cs30. looks fairly unused. wont start.
cleaned and blew out carb (except did not remove adjustment screws) -looked very clean inside. drained and filled with new 50:1. filter clean, plug looks good-switched plugs-no affect. primer fills with no leaks and under pressure. fuel lines are good, primer stays really full and i suspect is recirculating right back into tank???, float needle lets gas in.

checked for grounding. how do you check for spark?
No gas in throttle, what could be keeping the carb from letting gas into the throttle?
saltandpepper60
Reply: Ryobi Wont Start

saltandpepper60

Ryobis are junk not worth fixing.
WJA
Reply: Ryobi Wont Start

WJA

Hello 1080997,

We have a couple of articles and videos that might just get your Ryobi going again. Here are the links to them.

How to Clean a 2 Cycle Engine Carburetor.

How to Tune-Up a 2 Cycle Engine.

Hope these will help,

-WJA
I was luckly and got the off but shaft and plates and blue from overheating even melted some of plastic on cover . any ideas on why ? I also found recoil stuck but put rope back and now work fine many thanks
fishcalls
Question: Recoil Spring

fishcalls

can i get a recoil spring for the cs30
WJA
Reply: Recoil Spring

WJA

Hello fishcalls,

The part number for the starter recoil spring is 638033001.

Hope this helps,
-WJA
JWJ
Reply: Recoil Spring

JWJ

The video shows him puting in the spring and plate with the spring exposed. I put mine together and took it apart about 5 times before I realized IT has to be turned over... wound the rope the wrong way.. over instead of under
My CS30 has been running great for 5 years. Now it will only run on full choke & dies when I pull the trigger to run. Replaced spark plug, fuel lines and filter, and soaked in good 2-cycle/4-cycle engine cleaner. No change. Any ideas?
rich64804
Reply: Carburetor Choke To Run & Di...

rich64804

[QUOTE=jwte;67876]My CS30 has been running great for 5 years. Now it will only run on full choke & dies when I pull the trigger to run. Replaced spark plug, fuel lines and filter, and soaked in good 2-cycle/4-cycle engine cleaner. No change. Any ideas?"

Did you get it fixed? I have the same problem
prm3706
Reply: Carburetor Choke To Run & Di...

prm3706

Had the same problem, found these 2 items causing problems
Exhaust loose and letting compression out> Check gasket and bolts
Carb. choke plate fell off and into the carb. unit still ran but only wide open all the time couldn't throttle it.
glgarcia
Question: Fuel Lines To Gas Res

glgarcia

My edger dropped on the floor and the two fuel lines into the gas resv broke at the resv top. Looks like one was linked to the fuel filter and the other just into the tank. What parts are these?..need from assy output to and thru into fuel compartment. Didnt see on parts breakout.
CSmith6478
Question: Primer Bulb

CSmith6478

Does any gas get pumped into the cyclinder when you press the Primer Bulb to prime the engine? It appears to me that the gas is pumped through the carburtor and that it just returns to the tank, which will pressurize the tank so that gas will flow. I get no gas coming from any port when I have the carburator disconnected fromt the engine but still hooked to the gas lines.
ShotOut
Reply: Primer Bulb

ShotOut

No, the primer bulb ONLY pulls fresh gas into the carburetor while pushing OLD gas and AIR back into the fuel tank. It is actually a purge bulb.
roperdoug
Reply: Primer Bulb

roperdoug

The Primer Bulb does not pump gas into the carb or the cylindar. It is actually a purger which pulls the air out of the carb and the fuel replaces the air in the carb. If it does, then it's connected wrong. If it is an external bulb, the short nipple goes to the outlet of the carb and the long nipple returns to the tank.
If it is hook up right or the bulb is mounted on the carb, watch the flow of the fuel/air bubbles in the line which carries the excess fuel to the tank. If you see it moving back toward the carb then the snap-in primer or the mounted primer is defective. Instead of pulling the air out it's pushing it in which is contrary to the design.
paulrichmond
Question: Ryobi Cs30 String Trimmer

paulrichmond

Where do I buy piston rings for this motor?? Pauls asking.
ShotOut
Reply: Ryobi Cs30 String Trimmer

ShotOut

Many vendors have the rings. Try ebay also if you have an account on there or wish to start one.
georgeagosta
Question: Yellow Starter Arm On Carburetor

georgeagosta

Can you buy just the yellow arm for the choke start or do I need to by the whole carburetor?
NATE
Reply: Yellow Starter Arm On Carburetor

NATE

Check out this part number
518824001
It is homelite (they make RYOBI) and is for certain RYOBI leaf blowers and appear that they should fit line trimmers as well. Hope this helps.
kered42
Question: Success Rate

kered42

have many used this kit successfully
UtahAV
Reply: Success Rate

UtahAV

You can tally me in the successful category.

-UtahAV
-Mark
blcw
Question: Ryobi CS30 Cover

blcw

We have a Ryobi CS30 weed eater. We are missing the cover. Where can we get one of these?
sbowers723
Reply: Ryobi CS30 Cover

sbowers723

e-bay has a few but are high priced
854728
Question: Ryobi Air Filter Base Plate

854728

Ryobi trimmer CS30 --can't figure out how to remove the plate underneath the air filter to access the carburetor
UtahAV
Reply: Ryobi Air Filter Base Plate

UtahAV

The plate is held in plate with two lock nuts. Remove the lock nuts with a socket wrench and the air filter base will be free.

I hope this helps,

-UtahAV
-Mark
cmg
Question: Airfilter

cmg

does the airfilter just snap in?
UtahAV
Reply: Airfilter

UtahAV

Hi cmg,

The air filter base is held to the tool using the same screws that hold the carb to the engine. Tools that use this base don't have a filter. Ryobi considers the piece of window screen over the air intake opening to be the filter. Not the best design in my opinion...

-UtahAV
-Mark
streamlight
Reply: Airfilter

streamlight

I ordered a foam filter for mine because the factory screen is not suitable to keep the dust out. The filter from the link below comes with the part in the picture and also the middle section which fits the model RY28040 perfectely.

link removed
streamlight
Reply: Airfilter

streamlight

Ebay seller 'mowers4u' has a foam filter that fits perfect in the Model RY28040. It comes with two pieces, use the inner piece.
Item no. 280731085557
paulrichmond
Question: Carburetor

paulrichmond

are gaskets and/or overhaul kits available?
ShotOut
Reply: Carburetor

ShotOut

Yes, they are. Your exact carburetor application is the key. If you have the Ruiing carb without the choke lever instead of this Homelite carb, Zama carb parts fit it. One or two kits for it are on Ebay. There are also kits for the Homelite carb, but I can't tell if it is the Ruiing or Zama.
Dave835
Question: Ryobi Weed Wacker Cs30,gas/oil

Dave835

would anyone know the gas oil ratio for this trimmer Thanks Dave
cfmoss
Reply: Ryobi Weed Wacker Cs30,gas/oil

cfmoss

50:1
805485
Question: Ryobi Cs30 Clutches

805485

I Had spring break in the recoil. I changed it out, but now when i put the clutches back on when i tighten them down it seems like ther pinching the recoil and it wont wind back up. If i take the clutches off it works perfect! Am i tighting them down to far? is ther a tourqe spec? Or do i have something els wrong? Any help? thanks.

Also the string keeps falling off the recoil? I think i might have it together wrong.
UtahAV
Reply: Ryobi Cs30 Clutches

UtahAV

I would verify That items #30, 31, 32 on page B are all installed on the trimmer. These are a small washer that sits against the flywheel, a spacer tube, and a large washer that sits between the clutch plates and the front housing. I believe that these three parts provide space for the starter assembly between the clutch plates and the flywheel. If the spacer tube was worn it could also reduce the distance between the plates and the clutch and cause pinching.

I hope this helps,

-UtahAV
-Mark
zzyzackis
Question: Trimmer Doesn't Spin

zzyzackis

I have a Ryobi cs30 trimmer with 3000a engine. The engine runs fine, but the trimmer head doesn't turn. Do I need just the drum and connector or a whole new clutch? Or maybe a new cable, although it turns when I move the head manually?
Thanx for any help.
philator
Question: Gas Tank

philator

i found a small piece in the gas tank. it seems to be a filter. can it be replaced or do i need to replace the tank?
UtahAV
Reply: Gas Tank

UtahAV

Hi philator,

Ryobi offers the tank with the fuel lines and filter already installed. It is part #308675021.

I hope this helps!

-UtahAV
-Mark
Bruce
Question: Clutch Plate Removal

Bruce

The clutch plate on my Ryobi string trimmer broke. How do you remove this plate ????
Bill
Question: Carburetor Lever

Bill

My trimmer fell and just the yellow lever cracked. Can I just buy a new plastic lever?
NATE
Reply: Carburetor Lever

NATE

Try part number 518824001
It is a homelite part number and I found it in a Ryobi Leaf blower parts diagram. Looks like it will fit Ryobi trimmer carbs as well. Good luck.
marhev
Question: Replacing Thread Spool

marhev

Could someone please post the instructions for replacing the thread spool? I'm not aligning it correctly or something because it just spins and the thread doesn't engage.
Mark
Reply: Replacing Thread Spool

Mark

Hi Marhev,

We have an article and video that should help you with the loading of your trimmerhead. You can find the article and video at the following link...

http://www.ereplacementparts.com/article/3499/How_to_Replace_Trimmer_Line.html

I hope this helps!

-Mark
jesse
Question: Piston Retaining Clip

jesse

I took apart my engine to see why it had seized. I lost the little retaining clip that holds the piston in place.

Can anyone help me find another one? I can't find a description in the manual.

Thanks.
Mark
Reply: Piston Retaining Clip

Mark

Hi Jesse,

The clips you mentioned are item #B54 on page B of the parts diagram. If the engine seized you will want to carefully inspect the engine for additional damage. For and engine to seize two of the metal surfaces must make contact. You will find damage to both of these surfaces. If the retaining ring did fall off then the contact which caused the engine to seize was likely between the Piston Pin (Item #B55) and the cylinder wall (Item #B58). It is very unlikely that the retaining ring would fall off without help from another issue. Typically this type of failure is caused by insufficient lubrication. As the engine heats up due to the lack of lube the retaining ring and the piston pin will expand at different rates due to the different metals and different sizes. It is this difference in expansion that causes the retaining ring to fall off.

I hope this helps with your repair.

-Mark
Dennis
Question: Flywheel

Dennis

The flywheel is not staying in position on the crankshaft. I noticed no key way for shaft but grooves within the flywheel. Has there been a manufactures defect in casting of the flywheel?
Mine looks as if there was not enough material to stay positioned even when locked down tight.
Mike
Question: Piston O Ring

Mike

My piston looks good. The piston "O" Ring is bad. Do I have to replace the whole piston or can I just replace the "O"Ring. Also the O-ring looks a little fragile, is there a trick to putting it on? Should I put a little oil in the groove before installing it?
Dennis White
Question: Broken Pull Start Rope

Dennis White

How hard is it really to replace one of these? I bought it last year and the rope snapped last week. Everyone is telling me to just buy a new trimmer.
Mark
Reply: Broken Pull Start Rope

Mark

Hi Dennis,

Replacing the starter rope on many 2-cycle tools can be a difficult task due to the need to rewind and reconnect a hard to work with starter spring. Replacing the entire starter assembly however is really a fairly simple repair that most homeowners can perform themselves. It is just a matter of removing the shaft, the clutch drum and the clutch plates and then the starter itself. Most folks have the most difficulty removing the clutch drum. We have an article and video that will guide you through that part of the repair. You can find the article and video at the following link...

http://www.ereplacementparts.com/article/1771/How_to_Remove_a_Trimmer_Clutch.html

I hope this helps with your trimmer repair!

-Mark
courtdubya
Question: Drive Shaft Problem

courtdubya

I see that people on here are having problems with the drive shaft not engaging. However, I have the opposite problem. As soon as the engine starts, the drive shaft is spinning. This poses an obvious safety issue. Please help!
ShotOut
Reply: Drive Shaft Problem

ShotOut

You need to turn the Idle adjustment screw counterclockwise to slow down the Idle speed of the engine.
Tony
Question: High Altitude Adjustment

Tony

I just bought a Ryobi trimmer SS30 new out of the box, never used, from a private individual. I in put fresh gas oil mixture, it starts and idles fine, but once you pull the trigger to rev it up, it dies. I live in Utah and was told it needs a high altitude adjustment. How do I do it?
Mark
Reply: High Altitude Adjustment

Mark

Hi Tony,

Your best bet is to take it to a small engine shop to have the adjustment made. The carburetor needs to be tuned leaner to compensate for the thinner air. The adjustment should be done by a trained service tech as if the carb is adjusted too lean for just a few moments it can cause irreversible damage to the engine. Also most modern carburetors require special tools to make the carb adjustments that only a small engine shop would have.

I hope this answers your question.

-Mark
frank
Question: Trimmer

frank

The engine runs but the trimmer head doesn't spin. I know that the cable in trimmer is not broken.
zzyzackis
Reply: Trimmer

zzyzackis

Same problem here. Did you ever find out what was wrong? Tnx.
1098438
Reply: Trimmer

1098438

Have the same problem - was there any resolution here?
WJA
Reply: Trimmer

WJA

Hello frank,

Check your 308177001 drum and connector for damage, also look at your 00242 clutch plates to see if they are damaged or worn.

-WJA
vern
Question: Trimmer Will Not Run

vern

I used my trimmer for about 1 hour. It ran kind of rough. I shut it off for awhile and when I restarted it, it will only run for few seconds and then stall. I tried to start it on and off the rest of the day. But it would not keep running.
Mitch
Reply: Trimmer Will Not Run

Mitch

Try putting a fresh spark plug in it. You can try cleaning it, re-gaping, etc., but I find a fresh spark plug works wonders in these things.
Rhonda
Question: String

Rhonda

What size of string do I use for my Ryobi CS30?
Mark
Reply: String

Mark

Hi Rhonda,

Ryobi specifies .080" line. We have a selection of replacement line listed at the bottom of the parts listing on this same page.

I hope it helps!

-Mark
I purchased a rototiller attachment for this trimmer. I hit a rock and sheared the drive cable in the upper boom assembly. I see the upper boom assembly in the parts diagram, is this cable part of the assembly?
Roy
Reply: Sheared Drive Cable On CS30 RY30...

Roy

Hello: It could be the end of the flex drive cable stripped? The drive tube & flex drive cable are an assembly that can be ordered, it comes with the cable inside a factory pressed in bearing tube, it comes with the attachment coupler included. Go to Ereplacementparts, input your model# and search, pick your series by ser# or motor family in the diagram. They are a little pricey,but compared to buying another whole unit it is worth it. It is a medium skill level job that can be done in under an hour.
Charles Rathbun
Question: Weedeater String

Charles Rathbun

The manual says to use .095" diameter monofilament string. I can't find it anywhere. Where can I get it?
Mark
Reply: Weedeater String

Mark

Hi Charles,

Ereplacementparts carries a large selection of line for you trimmer. The following link will help you find the line...

http://www.ereplacementparts.com/trimmer-line-c-714_17587_17862.html?268=.095%22&page=1

Thanks!

-Mark
JTB
Question: Throttle

JTB

My throttle sticks in the wide open position. The cable seems to be free. The attachment device on the carburetor does not spring back to the idle position. How can I fix this?
Don
Question: Cutting Head Problem

Don

I have a Ryobi string trimmer. I can turn the expander shaft by hand, but it will not turn the cutting head. How do I get the pressed on head off of the curved shaft?
Jameslf
Reply: Cutting Head Problem

Jameslf

the clutch spring can break,wedging between centri weight & cover locking clutch link removed spring ends are on the inside to prevent draging on cover running.
mike
Question: Cs30

mike

How do I take off the pulley?
Bruce Braswell
Question: Primer Bulb

Bruce Braswell

I have the CS30 Ryobi string trimmer. The small plastic priming bulb is broken. What is the part number for a replacement? Can it be easily replaced?
Jameslf
Reply: Primer Bulb

Jameslf

#0057004 purge bulb,avail. frm various sml eng shops,even Napa auto pts.hold carb together while removing screws.remove only top plate w thin blade, reinstal screws snug to hold carb together.pull off bulb & rev operation.
Jim-FL
Question: Idle Adjustment

Jim-FL

Can I adjust the low speed idle on my CS30 trimmer? It will not idle. It stalls when I need it to idle.
ShotOut
Reply: Idle Adjustment

ShotOut

Your carb has an Idle Adjustment screw. However, the setting of the screw may NOT be the problem. The carb may need new internal parts (they come in kit form) as ethanol and time wear them out.
Dave N.
Question: CS 30 Carb

Dave N.

I am continually frustrated that every season I have to put it and it's companion BS30 in the shop for adjustment. Does anyone have the tools to adjust or sell a replacement carb that can be adjusted?
Mark
Reply: CS 30 Carb

Mark

Hi Dave,

Your machine has an "EPA" carburetor. Starting in 1997 The EPA placed requirements on how clean small engines are required to burn. As part of this restriction the carburetors are set at the factory. The carb then either has the adjustment ports capped or they use special adjustment screws so that the carb can only be adjusted by a tech trained in compliance with the EPA directives. The manufacture offers the special carb adjustment tools their authorized repair shops but not to the general public. The manufacture is liable to ensure that the equipment they sell complies with the EPA directive and therefore will typically not offer the adjustment tools for sale to the general public. You can learn more about the EPA emissions requirements for small engines at the following link...

http://www.epa.gov/otaq/consumer/f98025a.pdf

Before you adjust the carburetor you should determine why it needs adjustment first. A carb should only need adjustment when it is new and needs to be adjusted for altitude or after a carburetor rebuild has been performed. If a piece of equipment has been working fine and then starts acting up there will be more repair issues than a simple carb adjustment. The carburetor itself will not simply go out of adjustment. You will want to look at things like a tune up, a clogged carburetor, a plugged exhaust system, ignition problems, etc. Adjusting a carburetor requires some knowledge and experience with small engines. You can easily overheat and seize the engine if you are not familiar with the proper procedures. It is also a good idea to use an engine tachometer to be sure that you make the correct adjustments.

I hope this helps!

-Mark
gitim
Reply: CS 30 Carb

gitim

Dave,

I have the same problem every year. You can buy the tool you need on Amazon.

DOUBLE D - CARB ADJUSTING TOOL 308535002 - for Homelite Craftsman Ryobi Chainsaw Trimmer

link removed

Although Mark's answer may be true in theory, it's really a BS answer and the reality is the manufacturer wants you to buy a new carb or take it to a "professional" for repair.
Bob Rodriguez
Question: Ryobi Trimmer

Bob Rodriguez

I have a Ryobi CS30 Trimmer that starts up great but when I give it throttle it stalls and then dies out, any recommendations?
Ray
Reply: Ryobi Trimmer

Ray

1. Running too lean
2. High speed jet clogged
ShotOut
Reply: Ryobi Trimmer

ShotOut

You may need a new fuel pump diaphragm. These carbs develop different problems. There are 2 kits for these carbs. 1. Gasket and Diaphragm kit (cures most problems)
2. Complete Rebuild Kit (includes the G & D kit) and has other important parts to restore the carburetor
Al
Question: Clutch??

Al

My motor starts. If I hold the head, the motor spins but the head does not. Is this the clutch?
pansat098
Question: Control Handle Assembly

pansat098

I took apart my Ryobi ry26500 control handle assembly. I need to know how to put it back together.
mike
Question: Speed Spool Metal Broke

mike

I have a Ryobi speed spool trimmer and when I went to replace line I see that below the line reel assembly there is an aluminum tab that adjusts the line and assembly. This is broke and I can't seem to locate it on any diagrams. Is this replaceable?
Rich
Question: Repair Manual

Rich

Where can I get a manual or diagram that helps me repair or replace the starter rope?
Mark
Reply: Repair Manual

Mark

Hi Rich,

The biggest challenge in replacing the starter rope is removing the clutch drum. We have an article that should help to make the repair a snap. You can find the article at the following link...

http://www.ereplacementparts.com/article/1771/How_to_Remove_a_Trimmer_Clutch.html

Once the clutch is removed you can remove the front motor housing which will allow access to the starter assembly.

I hope this helps with your repair!

-Mark
dayton
Question: Cable

dayton

I'm looking for the lower flexible shaft for model ry30000a.
Mark
Reply: Cable

Mark

Hi Dayton,

The lower flexible shaft is sold as part of the Curved Shaft Assembly. The Curved Shaft Assembly is part #000998239 and is available from http://www.ereplacementparts.com.

Good luck with your repair!

-Mark

Stan
Question: Won

Stan

Was using my CS30 Ryobi when all of a sudden it stop running. I did notice that the spark plug was getting hot to touch. Also the spark plug is E3, and I think the cap maybe a little small. It would run than the spark plug wire would pop off. It stopped working with the original spark plug.
ShotOut
Reply: Won

ShotOut

Heat Range is fairly important on these machines, but usually not critical. Try to reinstall the OEM sparkplug (a new one) at the proper gap.
Buddy
Question: Gas Tank

Buddy

Does the gas filter and tubing come with a replacement gas tank?
Mark
Reply: Gas Tank

Mark

Hi Buddy,

Yes, the new fuel tank does include the fuel lines and a fuel filter. The Fuel Tank Assembly is part #308181004 and is available from http://www.ereplacementparts.com.

Good luck with your repair!

-Mark

jerry
Question: Timing

jerry

Getting gas !! Very nice spark !! Won't run? Sounds like the flywheel has moved on the crankshaft. What does a 30cc ? CS30 RX30000A engine have to keep the flywheel from getting out of time. Do you know the part number if there is such a part?
Thanks for any info...... Jerry
Mark
Reply: Timing

Mark

Hi Jerry,

The Flywheel has grooves milled into it that align with tabs on the crankshaft to hold the alignment for timing. I would have to suspect a carburetor issue. When an engine either won't start or does start but then dies while idling, 9 times out of 10 it is an issue with the carb.

The carburetor can become clogged by dirt or other debris. The dirt may get by a damaged or missing air filter. It can enter through a crack in the fuel lines. Some tools use a foam air filter. Over time the filter itself will breakdown and create debris that will enter the carb and clog it. It is a good idea to replace the air filter at least once a year. If fuel is left sitting in an unused trimmer for more than a couple of months the fuel will begin to breakdown and go bad. As the fuel breaks down it will start to become gel like as well as begin to coat the internal parts of the carburetor with a varnish. The gel and varnish will plug the carburetor so that fuel can no longer flow through it. To get your trimmer running again you will need to either rebuild or replace the carburetor. When you replace the carburetor it is always a good idea to also replace the air and fuel filters. This helps ensure that more debris won't clog the new carburetor.

There is not a rebuild kit offered for your carburetor so it will need to be replaced. The carburetor is part #308054003 and is available from http://www.ereplacementparts.com.

I hope this helps with your repair!

-Mark

ShotOut
Reply: Timing

ShotOut

@ Mark If the carb is a Zama or Walbro there is a repair kit for it. If it is a Ruiing carb, then the carb for a Zama with the similar body and style will fit it! Ask me how I know Mark!
roperdoug
Reply: Timing

roperdoug

Most machines have a key built into the flywheel. There is a small, very small chance, that the key is sheared. If the flywheel moves out of position but still spins with the shaft, it will give you spark but at the wrong time. If the key is built in and is sheared, then you need a new flywheel. There are a few that has a lock key that is not built in. If could have sheared or fallen out. Like I said this is unlikely but something to look at. Has the machine ever seized suddenly while you were using it and the problem built up since?
Coy Deich
Question: Adjust High Speed Idle

Coy Deich

How do you adjust the high speed fuel jet. Is there a special tool needed?
Mark
Reply: Adjust High Speed Idle

Mark

Hi Coy,

As part of emissions requirements set by the EPA the Hi adjustment, and in many cases the Low adjustment, are set at the factory and then capped so they cannot be adjusted. What looks like a special adjustment screw is actually the cap that was placed over the top of the adjustment screw.

I hope this answers your question.

-Mark
robert
Question: Primer Bulb

robert

I did not see a replacement primer bulb, is this part available?
Mark
Reply: Primer Bulb

Mark

Hi Robert,

Ryobi does not offer any separate parts for the carburetor. It is only sold as an entire unit. The carburetor is part #308054003 and is available from http://www.ereplacementparts.com.

I hope this helps with your repair!

-Mark
streamlight
Reply: Primer Bulb

streamlight

Look at ebay seller 'mowers4u' he has primer bulbs for Ruiing and Walbro carburetors.
JayZ
Question: Hard To Start

JayZ

I bought a RY 26500 in May and after several use, it would not start. I tried everything on the manual, but it still would not start. So frustrated.
Mark
Reply: Hard To Start

Mark

Hi JayZ,

First verify that the fuel you are using is mixed with 2-cycle oil at the proper ratio as specified by the manufacture and that fuel is no more than three months old. If the gas is old replace it with new, fresh fuel.

The spark plug may be bad. Occasionally a plug will fail prematurely.

The trimmer may simply be flooded. When a 2-cycle engine becomes severely flooded the cylinder will need to be blown out with compressed air. Remove the spark plug. You will need a spray nozzle for your compressor that will fit snugly into the plug hole. Now blow air into the cylinder while slowly pulling the starter rope. The air will exit through the muffler and will blow out any gas remaining in the cylinder or exhaust.

If the trimmer won't start after this then I would suspect a bad ignition coil. You will need a spark tester to check for spark. If spark is not present then the coil is bad.

The spark plug is part #870174001. The ignition coil is part #850108002. Both parts are available from http://ereplacementparts.com.

I hope this helps with your repair!

-Mark
ShotOut
Reply: Hard To Start

ShotOut

@ Mark If spark is not present....the cause MAY JUST be that the air gap between the magnets of the flywheel and the legs of the ignition coil module NEEDS to be adjusted, not necessarily replaced.
roperdoug
Reply: Hard To Start

roperdoug

Three steps in this order. Compression, Spark and fuel. You say this machine is not a year old, why compression. Have you been using regular gasoline from the gas station. It's been proven that Ethanol can be damaging to a 2 cycle engine, especially the rings. Find someone who has a compression gauge and check it. You should have somewhere between 90 to 120 psi. Anything less than 60 psi is not good.
Spark. Like the others are saying there are numberous places the ignition system can go wrong. Spark plugs are not that expensive. Get a new one. If it still doesn't fire and you can't get ahold of a spark tester (Napa carries them), get the old one and bend the tip a l little, snap the boot on and lay it against the metal on the machine so that it is grounded. Pull the starter, you should get a nice blue spark or glow.
If you are getting good spark, the next step is fuel. Get some carb cleaner, spray some in the spark plug hole or in the throat of the carb. Pull start, if it pops then you know the carb or fuel line is the problem. Mix some Seafoam Engine Treatment with the fuel and keep trying to start by spraying carb cleaner through the carb throat. You may have to pull the carb and clean it. Ethanol can be damaging to the check valves, diaphram. Did you completely drain the fuel tank and ran the machine dry before you stored it for the winter? If not, the carb is gummed up. Get some Seafoam spray cleaner and flush out the carb after taking it apart or you can try and attach a fuel line to the in port on the carb and the other in Seafoam treatment and purge it through the system.
rick
Question: Carb

rick

Where is the carburetor diaphragm?

Mark
Reply: Carb

Mark

Hi Rick,

There is not a carburetor diagram listed as Ryobi does not offer any parts for the carburetor separately. A new carburetor assembly can be purchased. It is part #308054013 and is available from http://ereplacementparts.com.

Good luck with your repair!

-Mark


Terry
Question: Replace Cutter String

Terry

Knob on bottom turns but wont come off so I can replace cutter string.
Mark
Reply: Replace Cutter String

Mark

Hi Terry,

The retainer knob is made up of a steel bolt held captive in a plastic knob. I think what happened the plastic stripped out and is allowing the plastic knob to spin without engaging the metal bolt. To remove it you will likely need to break away the plastic. knob so you can remove the bolt with a wrench. Once removed you can replace it with a new one. The retaining knob is part #308042002 and is available from http://ereplacementparts.com.

I hope this helps with your repair!

-Mark
roy
Reply: Replace Cutter String

roy

Hello: Marks comment about breaking away the bump knob can be handled better by putting a cloth around the drive tube and clamping in a vise,then make three cuts with a hacksaw just clear of the steel nut,not deep enough to damage the string spool,this will facilitate removing the plastic parts easier. I have done this three times this week and it worked fine.-- Just another tip,hope it helps others. -Roy.
Frank
Question: Priming

Frank

My 2 year old Trimmer will properly prime and start, but when I press the trigger, the unit choke's off. Where should I start troubleshooting?
Mark
Reply: Priming

Mark

Hi Frank,

It sounds like you have a plugged carburetor. The carb can become plugged with dirt or other debris. Gas left in the trimmer for more than a month or two will begin to breakdown and form varnish in the carb. The varnish will also clog the carburetor. The carburetor will need to be replaced to get your trimmer running again. When you replace the carburetor it is also a good idea to replace the air filter and fuel filter to help prevent dirt from getting to the new carb. The carburetor is part #308054003, the air filter is part #98760 and the fuel filter is part #985304001. All of these parts are available from http://ereplacementparts.com.

Good luck with your repair!

-Mark

Dell
Reply: Priming

Dell

You may want to check and make sure the muffler isn't clogged. I removed my muffler and the trimmer started up and ran fine. A bit loud, but no problem. I will be replacing it very soon.
Roy
Reply: Priming

Roy

Another thing to check is the atmospheric diaphragm in the carburetor,if it is a ZAMA or WALBRO,this diaphragm gets stiff with age and won't let the needle valve open properly when the throttle is opened. This part is available through ereplacementparts or other sources, check with your local shop for help.
Bob B
Question: Trying To Pump Gas

Bob B

The machine runs great , however I cannot seem to be able to bring the gas from the tank to the the squeeze ball. Could there be an air leak? Where do the fuel lines in the gas tank go to?
Mark
Reply: Trying To Pump Gas

Mark

Hi Bob,

There are several things to check when you can't get the carburetor to prime.

Inspect the fuel lines for cracks or leaks. If you find one bad line it is best to replace all of them as the others are probably not far behind. Check the primer bulb itself for cracks. There is a diaphragm in the carburetor that can become stuck and then will not allow fuel to flow through the carb. If the diaphragm is stuck then the carb will need to be replaced as there is no rebuild kit available for the carb on this trimmer.

There are two fuel lines going into the tank. One is the feed line and has a fuel filter on the end. The other is an overflow line used to return excess fuel to the tank when priming.

I hope this helps with your repair!

-Mark
Dave
Question: Hard Starting

Dave

Seems to be a problem with all weed wipes or trimmers
I have a ryobi CS 30 here and has some problems starting it I have yet to find a solution to these little engines or carbs what ever makes them hard to start. Pour gas in the plug hole it will start and run until the gas it use then stop won't start again unless you go thru the same producer. Other than a squeezed gas line what have we got.
I need to replace the starter pulley assembly. How do I remove the top cover over drum connector to get to it?
Mark
Reply: Replace Starter Pully Assembly

Mark

Hi Mark,

To access the starter you will first need to remove the clutch drum and the clutch.

Removal of the clutch drum isn't too hard of a project at all if you know a few tricks first. The drum is held in place by a screw at the base of the hole on the end of the clutch drum. I believe your model of trimmer will require a Torx #T-25 driver to remove the screw but it could be a hex drive or Phillips as well. The screw will remove with a counter-clockwise rotation. When you try to rotate the screw the engine will likely rotate as well. Here is where a trick comes in. Remove the spark plug from the engine. Now find a piece of small rope, like an old shoe lace. Put the rope down in the hole for the spark plug. Be sure to leave enough of the rope hanging out of the hole so you can remove it later. The rope will bind up the piston so the engine can no longer rotate and now you can easily remove the clutch drum screw.

The new starter assembly is part #985544001 and is available from http://ereplacementparts.com.

I hope this helps with your repair!

-Mark
Trevino Mashall
Question: Fuel Tank Screws

Trevino Mashall

What size star screwdriver do I need to take out those star screws on the fueltank?
The shaft that drives the trimmer head has came disconnected from the flexible shaft in my curved trimmer attachment.I want to know what sort of fastener locks them together.
[B][/B]I need your help putting the trigger spring back on the trigger the propper way so the trigger releases once let go. I took the handle assembly off to change the switch, the trigger spring popped off and I cannot figure out which way it goes on. If there is a picture of that assembled trigger or instructions please.:)
ep103
Reply: Ryobi Cs30 Trimmer- Trigger Spri...

ep103

I am having the same problem, i took the handle apart and the spring popped out, and I cannot figure out how it goes back in. please help..
jsumrall
Question: Jsumrall

jsumrall

how do you remove drum and connector part#308177001
UtahAV
Reply: Jsumrall

UtahAV

Hi jsumrall,

Removal of the clutch drum isn't too hard of a project at all if you know a few tricks first. We have prepared an article and video that will provide you with all of the information you will need to remove the clutch drum. You can find the article and video at the following link...

How to Remove a Trimmer Clutch

I hope this helps you with your repair!

-Mark
rprichardson
Reply: Jsumrall

rprichardson

I was able to get the clutch plate off. The rope trick is used in airplane engines when you have a stuck valve and you want to get it moving again. My question is that the handle come off the starter rope and I cannot figure out how to rewind it. I have spent some labor getting the gas tank hoses replaced and not to leak only to have the starter unwind. Any help would be appreciated.

Ross
i have a ry30000a trimmer think it needs new starter pully assembly wont retrac how do i remove drum and connector to remove cover to get to it
UtahAV
Reply: Removal Of Drum And Connector Ry...

UtahAV

Hi fixit,

Removal of the clutch drum isn't too hard of a project at all if you know a few tricks first. The drum is held in place by a screw at the base of the hole on the end of the clutch drum. I believe your model of trimmer will require a Torx #T-25 driver to remove the screw but it could be a hex drive or Phillips as well. The screw will remove with a counter-clockwise rotation. When you try to rotate the screw the engine will likely rotate as well. Here is where a trick comes in. Remove the spark plug from the engine. Now find a piece of small rope, like an old shoe lace. Put the rope down in the hole for the spark plug. Be sure to leave enough of the rope hanging out of the hole so you can remove it later. The rope will bind up the piston so the engine can no longer rotate and now you can easily remove the clutch drum screw.

Hope this helps with your trimmer repair!

-UtahAV
-Mark
lyoza
Question: Losing String

lyoza

why do I keep losing the string on the grass trimmer. make and models do not matter. I lose the string about every 2 minutes.
handydan
Reply: Losing String

handydan

Try winding the string on the spool in the opposite direction.
Accessories
Accessories for the CS30

Mix Oils:
See more mix oils 
6450001
Power Blend Ultimate 2-Stroke Oil 2.6 oz.
$2.55

6450025
Power Blend Ultimate 2-Stroke Oil 6.4 oz.
$3.43

T-00745
2-Stroke Oil w/ Stabilizer 50:1 Ratio 2.6 fl.oz
$3.33

fancyboxy