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Homelite
Gas Chainsaw

Model # 240-UT10821 Official Homelite chainsaw

Here are the diagrams and repair parts for Official Homelite 240-UT10821 chainsaw, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 143 parts  |
Screw 88063
#12

Figure 2 diagram

Screw

Part #88063

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

Screw 88048
#3

Chain brake diagram

Screw

Part #88048

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

Valve 69451
#22

Figure 3 diagram

Valve

Part #69451

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

Fitting 50558
#9

Figure 4 diagram

Fitting

Part #50558

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

Gasket 95022
#24

Figure 4 diagram

Gasket

Part #95022

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

Plate 95390
#18

Figure 2 diagram

Plate

Part #95390

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

Ring 70432-A
Ring

Part #70432-A

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

Washer 84025
#9

Figure 3 diagram

Washer

Part #84025

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

Silastic 24823

#NI

All parts diagram

Silastic

Part #24823

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

Isolator 95868
Isolator

Part #95868

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

Symptoms for gas chainsaws

Choose a symptom to see related chainsaw repairs.

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What should I do if my chainsaw leaks gas?

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

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Why does my chainsaw run roughly?

Main causes: bad gas, engine needs tune up, cracked fuel lines, dirty carburetor…

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Why won't my chainsaw start?

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

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Repair guides for gas chainsaws

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

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How to rebuild a chainsaw carburetor

How to rebuild a chainsaw carburetor

If your chainsaw isn't running well, a dirty carburetor could be the problem. You can take it apart, clean it and rebuil…

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

How to replace a chainsaw carburetor

If the engine won't start even though there's fuel in the chainsaw, the carburetor could be the problem. Sometimes, it's…

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Repair difficulty
Time required
 15 minutes or less
How to replace chainsaw fuel lines

How to replace chainsaw fuel lines

The fuel line on a chainsaw becomes brittle over time and can crack. Replacing it doesn't require a lot of DYI experienc…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your chainsaws

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

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What are the most common replacement parts for chainsaws?

What are the most common replacement parts for chainsaws?

Learn about the most common replacement parts for chainsaws and how they can help you fix chainsaw problems.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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