Ryobi
Gas Line Trimmer

Model # 720R-1 Official Ryobi trimmer

Here are the diagrams and repair parts for Official Ryobi 720R-1 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 102 parts  |

Spring 612468
#39

Engine diagram

Spring

Part #612468

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

Snap Ring 682040
#18

Engine diagram

Snap ring

Part #682040

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

Rotor 153591
#37

Engine diagram

Rotor

Part #153591

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

Spool Line 147345

#NI

All parts diagram

Spool line

Part #147345

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

Primer Hose 683974
#8

Engine diagram

Primer hose

Part #683974

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

D-handle 145568
#5

Boom & trimmer diagram

D-handle

Part #145568

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

Inner Reel 153600
#26

Boom & trimmer diagram

Inner reel

Part #153600

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

Reed Assembly 147573
#10

Engine diagram

Reed assembly

Part #147573

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

Cover 180098
#40

Engine diagram

Cover

Part #180098

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

Repair Kit 147171

#NI

All parts diagram

Repair kit

Part #147171

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…