Ryobi
Gas Line Trimmer

Model #725R SERIAL 611000001 AND GREATER Ryobi trimmer

Here are the repair parts and diagrams for your Ryobi 725R-SERIAL-611000001-AND-GREATER trimmer. 

The diagram(s) below can help you find the right part.  If you’d like help, we invite you to call our customer service number at the top of the page, or click chat.

On this page, you can also find any manuals, installation guides and error code tables associated with this model.

For advice on diagnosing problems with appliances, lawn & garden equipment and other products, check out the videos, repair guides and articles in our DIY section.

Save to my profile

Showing 10 of 103 parts

Line Trimmer Spool Spring

#30

Boom and trimmer Diagram

Line trimmer spool spring

Part #791-181531
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  181531
This part replaces 181531
This item is not returnable

$2.69

In Stock

Line Trimmer Bump Feed Knob

#36

Boom and trimmer Diagram

Line trimmer bump feed knob

Part #791-181468B
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  181468
This part replaces 181468

$11.57

In Stock

Lawn & Garden Equipment Engine Piston Ring

#NI

All parts Diagram

Lawn & garden equipment engine piston ring

Part #791-180530
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  180530
This part replaces 180530

$10.40

In Stock

Housing

#18

Boom and trimmer Diagram

Housing

Part #791-153312
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  153312
This part replaces 153312

$45.79

In Stock

Lawn & Garden Equipment Engine Recoil Starter Spring

#26

Engine Diagram

Lawn & garden equipment engine recoil starter spring

Part #791-613102
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  613102
This part replaces 613102

$17.07

In Stock

Lawn & Garden Equipment Engine Carburetor Mount Gasket

#13

Engine Diagram

Lawn & garden equipment engine carburetor mount gasket

Part #753-1208
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  612115
This part replaces 612115

$11.63

In Stock

Cap

#NI

All parts Diagram

Cap

Part #791-180986
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  180986
This part replaces 180986
This item is not returnable

$2.60

In Stock

Shblk:31cc:c

#NI

All parts Diagram

Shblk:31cc:c

Part #791-00039
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  181623
This part replaces 181623

$109.59

In Stock

Line Trimmer Drive Shaft Housing Clamp

#15

Boom and trimmer Diagram

Line trimmer drive shaft housing clamp

Part #791-153597
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  153597
This part replaces 153597

$11.90

In Stock

Leaf Blower Carburetor Rebuild Kit

#NI

All parts Diagram

Leaf blower carburetor rebuild kit

Part #791-180602
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  180602
This part replaces 180602

$40.49

In Stock

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings
Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank
Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carburetor

Repair guides for gas line trimmers

These step-by-step repair guides will help you safely fix what’s broken on your grass line trimmer.

October 1, 2013
By Lyle Weischwill
How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yourself, following these instructions.

Repair difficulty
Time required
 30 minutes or less
October 1, 2013
By Lyle Weischwill
How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these instructions to do the job in under 30 minutes.

Repair difficulty
Time required
 30 minutes or less
October 1, 2013
By Lyle Weischwill
How to replace a line trimmer carburetor

If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these instructions to replace the carburetor in under 30 minutes.

Repair difficulty
Time required
 30 minutes or less

Articles and videos for gas line trimmers

Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.

June 1, 2016

Tips for a hard-to-start grass line trimmer

By Sears PartsDirect staff

These tips may help you get your hard-to-start gas line trimmer running.

June 1, 2015

How to replace a line trimmer fuel line video

By Sears PartsDirect staff

Follow the steps in this video to replace a leaking fuel line in a line trimmer.

March 1, 2015

Easy DIY grass line trimmer repairs

By Sears PartsDirect staff

Learn about some very easy do-it-yourself repairs for a grass line trimmer.