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Model # 775R Official Ryobi gas trimmer
Here are the diagrams and repair parts for Official Ryobi 775R gas trimmer, as well as links to manuals and error code tables, if available.
By Schematic
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Browse Parts for
775R Line Trimmers
#19
Engine diagram
Fuel line
Part #682039
The manufacturer no longer makes this part, and there's no substitute part
#24
Engine diagram
Spacer
Part #181065
The manufacturer no longer makes this part, and there's no substitute part
Guard
Part #180548
The manufacturer no longer makes this part, and there's no substitute part
#48
Engine diagram
Gasket
Part #610674
The manufacturer no longer makes this part, and there's no substitute part
Slinger
Part #181461
The manufacturer no longer makes this part, and there's no substitute part
#8
Boom and trimmer-767r diagram
Housing
Part #181569
The manufacturer no longer makes this part, and there's no substitute part
Spring
Part #181459
The manufacturer no longer makes this part, and there's no substitute part
#12
Boom and trimmer-775r diagram
Bolt assembly
Part #181617
The manufacturer no longer makes this part, and there's no substitute part
#6
Engine diagram
Carburetor
Part #181621
The manufacturer no longer makes this part, and there's no substitute part
Spring
Part #181531
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, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…
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…
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
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
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
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.

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

Follow these tips to prevent the cutting line on your grass line trimmer from breaking or feeding out too much or too li…

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