Ryobi
Gas Line Trimmer

Model # 720R Official Ryobi line trimmer

Here are the diagrams and repair parts for Official Ryobi 720R line trimmer, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 98 parts  |

Gasket 145564
#51

Engine diagram

Gasket

Part #145564

The manufacturer no longer makes this part, and there's no substitute part

Screw 683606
#12

Boom and trimmer diagram

Screw

Part #683606

The manufacturer no longer makes this part, and there's no substitute part

Strap Clip 610327
#5

Boom and trimmer diagram

Strap clip

Part #610327

The manufacturer no longer makes this part, and there's no substitute part

Screw 153318
#20

Boom and trimmer diagram

Screw

Part #153318

The manufacturer no longer makes this part, and there's no substitute part

Shroud Extension 683078
#26

Engine diagram

Shroud extension

Part #683078

The manufacturer no longer makes this part, and there's no substitute part

Spacer 145918
#28

Engine diagram

Spacer

Part #145918

The manufacturer no longer makes this part, and there's no substitute part

Gas Cap 180000
#21

Engine diagram

Gas cap

Part #180000

The manufacturer no longer makes this part, and there's no substitute part

Shaft 683608
#16

Boom and trimmer diagram

Shaft

Part #683608

The manufacturer no longer makes this part, and there's no substitute part

Fuel Tank 147580
#20

Engine diagram

Fuel tank

Part #147580

The manufacturer no longer makes this part, and there's no substitute part

Retainer 610660
#27

Boom and trimmer diagram

Retainer

Part #610660

The manufacturer no longer makes this part, and there's no substitute part

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: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…

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.

How to rebuild a line trimmer carburetor

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…

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer carburetor

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 …

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer fuel line

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 yours…

Repair difficulty
Time required
 15 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.

Top 10 electric lawn and garden tools for 2023

Top 10 electric lawn and garden tools for 2023

Learn about the top 10 must-have electric lawn & garden tools for 2023…

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Grass line trimmer maintenance checklist

Grass line trimmer maintenance checklist

Find out how to take care of your grass line trimmer from the start of the trimming season until the end, with this help…