Hello twr4d,

I have searched to see if there is any other muffler assembly that would fit the CS30 RY26500 trimmer but the only one I can find is the 308990011 muffler assembly.

-WJA

Hello talonusm,

The trimmer you have has a similar type of clutch found in a chainsaw, that we have an article and video explaining how to remove it.
Here is a link to it.

How to Replace the Clutch Sprocket on a Chainsaw

The clutch on your trimmer should be a standard RH thread.

Hope this helps,
-WJA

Ryobis are junk not worth fixing.

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

[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

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.

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.

i'm with you. mine is stripped. i've tried to just put the parts together from generic pieces at hardware store but no luck. let me know if you find a solution.... randalfrye@gmail

CLASP NEEDED as well... Seems like a sham that you cannot just order a piece that needs replacement often?

Hello BengalWACO,

If your talking about the clasp at the end of the boom assembly, I am sorry but this the only way the manufacture sales it. Here is an image of the boom assembly, let me know if this is what your talking about.

308470004.

Thanks,
WJA

You can tally me in the successful category.

-UtahAV
-Mark

e-bay has a few but are high priced

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

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

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

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

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.

50:1

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

Hi philator,

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

I hope this helps!

-UtahAV
-Mark

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.

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

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

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

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

Same problem here. Did you ever find out what was wrong? Tnx.

Have the same problem - was there any resolution here?

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

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.

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

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.

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

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.

#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.

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

1. Running too lean
2. High speed jet clogged

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

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

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

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

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

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

Look at ebay seller 'mowers4u' he has primer bulbs for Ruiing and Walbro carburetors.

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

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

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

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.

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

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.

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.

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

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

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..

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

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

The rope for the Ryobi CS30 is part number 900849002. The grip for that rope is sold separately - part number 07588. Both can be found here:

900849002 Starter Rope - $0.83
07588 Starter Grip - $0.65

Here's a link to the CS30 breakdown for reference - both of these parts can be found on page B of the diagram.

Ryobi CS30 Parts List and Diagram : eReplacementparts.com

Hope this helps!

I am having the same probem. I need to work on the recoil start. Rope came off and is wraped around the shaft. I have removed part 24 (page 3) but can not get part 5 (page 3) off. It seems free but is hung up on something. Any tips or tricks in getting it free?

Try winding the string on the spool in the opposite direction.