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 766R (810185404) (41AD766G034) 2-Cycle Gas Trimmer Parts
Ryobi 766R (810185404) (41AD766G034) 2-Cycle Gas Trimmer

 Ryobi 766R (810185404) (41AD766G034) 2-Cycle Gas Trimmer Parts

Engine Assembly
Shaft Assembly
   Engine Assembly   

 Fig # Part # Img Part Name Availability Price Qty
A1753-04511
Air Cleaner/Muffler Cover Assembly
Note: Includes 2, 36
In stock
3 available
 $22.45
A2791-180350B
Air Cleaner Filter
In stock
25+ available
 $5.81
A3791-180351
Carburetor Mounting Screw Assembly
In stock
3 available
 $6.25
A4936-0271
Spring Wash. .32" I.D.
In stock
3 available
 $2.42
A5753-04418
Choke Lever Assembly
Note: Includes 6
In stock
2 available
 $5.94
A6791-182202
Choke Knob and Screw
In stock
2 available
 $8.65
A7753-04419
Choke Lever and Plate
Note: Includes 5
In stock
2 available
 $7.86
A8791-182875
Carburetor Assembly
Note: Includes 9, 21
In stock
25 available
 $41.18
A9791-610675
Carburetor Gasket
In stock
25+ available
 $2.41
A10791-181860
Carb Mount Screw
In stock
4 available
 $3.29
A11791-683974B
Primer and Hose Assembly
In stock
25+ available
 $13.34
A12791-180354
Carb Mount Assembly Obsolete - Not Available
Discontinued
$0.00N/A
A13791-684451
Reed Assembly
In stock
4 available
 $6.54
A14791-181866
Power Shaft Assembly
Ships in 5 - 6 business days
 $48.67
A15753-1208
Crankcase Cover Gasket
In stock
25+ available
 $9.83
Fig #Part #ImgPart NameAvailabilityPrice
A16753-04272
Crank Case Service Assembly
Note: Includes 10, 14, 24
Ships in 5 - 6 business days
 $78.61
A17791-612134
Rear Mounting Pad
In stock
2 available
 $6.20
A18753-04311
Fuel Tank w/ Cap Obsolete - Not Available
Note: If more than 3 - Includes 19 - 21
Discontinued
$0.00N/A
A19791-181559
Fuel Cap Assembly Obsolete - Not Available
Note: If more than 3 - Includes 19 - 21
Discontinued
$0.00N/A
A20791-181086
Fuel Return Line
In stock
25+ available
 $4.10
A21791-682039
Fuel Line and Filter
In stock
25+ available
 $9.20
A22791-145308
Front Mounting Pad Obsolete - Not Available
Discontinued
$0.00N/A
A23791-153520
Shroud Assembly
Ships in 5 - 6 business days
 $28.41
791-181861
Shroud Screw
Backorder:
No ETA.
 $2.47
181861
Screw
Ships in 5 - 6 business days
 $15.76
A25753-04611
Shroud Extension and Stand
In stock
2 available
 $19.69
A26753-05240
Flywheel Assembly
In stock
25+ available
 $41.52
A27791-610303
Square Nut Drive
In stock
2 available
 $14.46
A28753-04232
Recoil Pulley Assembly
In stock
25+ available
 $17.26
A29791-613102
Recoil Spring
In stock
12 available
 $14.75
Fig #Part #ImgPart NameAvailabilityPrice
A30791-181441
Pulley Retainer Assembly
In stock
2 available
 $4.65
A31611061
Rope Guide
In stock
1 available
 $4.43
A32791-181442
Switch Assembly Obsolete - Not Available
Note: Includes 40
Discontinued
$0.00N/A
A33631-04164B
Pull Handle
In stock
2 available
 $2.23
A34791-613103
Rope
In stock
7 available
 $5.64
A35791-181443
Starter Housing Assembly
Note: Includes 28 - 35, 40
In stock
3 available
 $40.01
A36791-181862
Housing Screw
In stock
10 available
 $2.30
A37791-181345
Cover Screw
In stock
18 available
 $2.33
A38791-180098
Clutch Cover Assembly
In stock
6 available
 $19.01
A39791-153597
Upper Clamp Assembly
In stock
13 available
 $9.61
A40791-180036
Wire Lead Obsolete - Not Available
Discontinued
$0.00N/A
A41753-04125
Module Assembly
In stock
13 available
 $62.16
A42791-610311B
Spark Plug
Note: Oregon 77-304-1 is a suitable replacement part.
In stock
25+ available
 $7.88
A43753-04619
Exhaust Gasket
In stock
6 available
 $4.56
A44753-05169
Muffler Assembly
Note: Includes 43, 45
In stock
25+ available
 $61.63
Fig #Part #ImgPart NameAvailabilityPrice
A45791-147575
Muffler Mounting Bolt Assembly
In stock
2 available
 $5.85
A46753-04814
Cylinder Assembly
In stock
4 available
 $45.29
A47753-04367
Piston and Rod Assembly
In stock
25+ available
 $38.52
A48791-610674
Cylinder Gasket
In stock
2 available
 $2.27
A49791-181870
Cylinder Bolt
Ships in 5 - 6 business days
 $3.42
A753-04134
Engine Gasket Kit
In stock
6 available
 $7.56
A791-180602
O.E.M. Carburetor Repair Kit (Walbro)
In stock
3 available
 $41.55
A791-180090
O.E.M. Carburetor Repair Kit (Zama)
In stock
2 available
 $33.29
A791-181069
Gasket-Diaphragm Repair Kit (Walbro)
In stock
3 available
 $23.07
A791-180091
Gasket-Diaphragm Repair Kit
In stock
8 available
 $19.13
A791-180530
Piston Ring
In stock
8 available
 $10.29
A791-181863
Short Block Assembly
Note: Includes 10, 14, 16, 24, 42, 46 - 49
Ships in 5 - 6 business days
 $114.83
A791-181501
Starter Housing Screw Set
Ships in 5 - 6 business days
 $6.17

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).

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 766R (810185404) (41AD766G034) 2-Cycle Gas 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:
  •  
bullet
Question: 766r Ryobi 2-cycle Trimmer

bullet

I recently rebuilt my 766r. New gaskets, plug, carb diaphragms, etc. Cranked it up and it ran great. Now every time I crank it, it runs differently. One day, it will idle fine with the choke fully open and run smoothly. the next day it will only idle with the choke in the half open mode. It's got me baffled. I have tried adjusting the idle jet and idle screw-works one day - the next its back to square one! Any one got any ideas?
WJA
Reply: 766r Ryobi 2-cycle Trimmer

WJA

Hello bullet,

Sounds like you are having a great time with your trimmer. We have an article and video on How to Diagnose Two Cycle/Two Stroke Engines. Look this over and hopefully it will give you some ideas on how to get your trimmer running correctly.

-WJA
jamnw
Question: No Start

jamnw

Carb or coil? I put my trimmer up empty, but now it won't start. Tried new spark plug. Tried spraying starting fluid to see if I could get a hit, but nothing. Would you suspect the coil or the carb?
Rik1t2
Question: Fuel Line Nipples

Rik1t2

can you purchase the fuel line nipples needed to mount primer fuel line to the tank?
how to install the recoil spring 791-613102 in a 41CD766G034 which is different installation from others Ryoby.
Hey Guys I am replacing my Gearbox Assembly on my Ryobi 766R. With part number 791-180549. The GA (Gearbox Assembly) is slightly different but I was able to get it on. The only problem that I seem to be having is ether my Flexible Drive Shaft is too short (end maybe worn) or the new GA will not let the shaft of the trimmer to go far enough into the GA because when I start the trimmer the motor runs but the head dose not turn. Any help would be great.
Omar
Question: Missing Fuel Line Part

Omar

I have a Ryobi 766r trimmer/hedger. There are two fuel lines that enter/leave the fuel tank, and these go through a piece of black rubber. I can easily locate the fuel lines and primer bulb at this web site, but I can not locate the black piece of rubber. Help.
Brian
Question: Brush Blade

Brian

I've got a Ryobi 766r. I need to cut some heavy brush. In the old literature I see a brush blade, part #145873. I can't seem to find it. Is there a newer part number or a different one?
g march
Question: 766r What Cc ???

g march

What cc is the 766r 2cycle gas trimmer? Thanks
tom
Reply: 766r What Cc ???

tom

31cc
GW Bandy
Question: Fuel Line Routing

GW Bandy

I would appreciate a drawing of the routing of the fuel lines to the carburetor for my 766r 2-cycle gas trimer.

Thanks for your assistance.
GW Bandy
Mark
Reply: Fuel Line Routing

Mark

Hello,

Below you find the link to a diagram showing the fuel line routing common on Ryobi trimmers...

http://www.ereplacementparts.com/images/fuel_line_diagram.jpg

I hope this helps with your repair!

-Mark
How do I remove the trimmer head assembly? I would like to replace it with a Pivotrim head.
Zack
Question: Fuel Line

Zack

I am looking for the original fuel line for the Ryobi 766R (810185404) (41AD766G034) 2-Cycle Gas Trimmer.
Mark
Reply: Fuel Line

Mark

Hi Zack,

The feed line is part #791-682039 and the vent line is part #791-181086. Both parts are available from http://www.ereplacementparts.com.

Good luck with your repair!

-Mark

Randy
Question: Fuel Lines

Randy

I replaced the fuel lines when they started cracking. I think I attached all three line to the right places but the trimmer is hard to start and stalls when I accelerate. Is there something I did wrong? Or does the carburetor need adjusting?
Mark
Reply: Fuel Lines

Mark

Hi Randy,

It sounds to me like the carburetor is plugged. The carburetor can become clogged by dirt or other debris. With your trimmer the carb was likely plugged with pieces of the deteriorating fuel line. 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 carb kit available for the carburetor on your trimmer so it will need to be replaced. The new carburetor is part #791-182062 and is available from http://www.ereplacementparts.com

I hope this helps with your repair!

-Mark
Mike b
Question: Plug

Mike b

What type spark plug does it take and what is the gap setting?
Mark
Reply: Plug

Mark

The spark plug is part #791-610311B and is available from http://www.ereplacementparts.com. It will come to you pre-gapped and ready to install. Hope this helps with your repair! -Mark
Accessories
Accessories for the 766R

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