Model # 704R Official Ryobi gas trimmer

Here are the diagrams and repair parts for Official Ryobi 704R gas 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 79 parts |

#46

Engine diagram

Bolt

Part #791-147575

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

#48

Engine diagram

Piston and rod assembly

Part #791-884449

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

#26

Engine diagram

Cylinder assembly

Part #753-04323

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

#33

Engine diagram

Rope

Part #791-613103

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

#NI10

All parts diagram

Strap

Part #791-682075

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

Engine diagram

Gasket

Part #791-610675

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

#43

Engine diagram

Muffler

Part #791-182066

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

#38

Engine diagram

Screw

Part #791-182519

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

#41

Engine diagram

Module

Part #791-181937

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

#45

Engine diagram

Gasket

Part #791-182065

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.

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Why won't my gas line trimmer start?

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

Why does my gas line trimmer run rough?

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

Why does my gas line trimmer leak gas?

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.

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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.

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Top 10 electric lawn and garden tools for 2023

Model # 704R Official Ryobi gas trimmer

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for gas line trimmers

Why won't my gas line trimmer start?

Why does my gas line trimmer run rough?

Why does my gas line trimmer leak gas?

Repair guides for gas line trimmers

How to rebuild a line trimmer carburetor

How to replace a line trimmer carburetor

How to replace a line trimmer fuel line

Articles and videos for gas line trimmers

Top 10 electric lawn and garden tools for 2023

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

Grass line trimmer maintenance checklist

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