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Homelite
Gas Chainsaw

Model # Z3850-18 INCH Official Homelite chainsaw

Here are the diagrams and repair parts for Official Homelite Z3850-18-INCH chainsaw, 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 116 parts  |
Decal 07566
#2

Fuel tank-oil tank diagram

Decal

Part #07566

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

Choke Rod 07579
Choke rod

Part #07579

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

Flange Nut 07589
#10

Carburetor-muffler-air filter diagram

Flange nut

Part #07589

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

Hndl Kit Fnt A08695
#12

Handles diagram

Hndl kit fnt

Part #A08695

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

Ch Brk Link A07612
#19

Chain brake-drive case cover diagram

Ch brk link

Part #A07612

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

Ring 64813
Ring

Part #64813

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

Fuel Cap A07590
#19

Fuel tank-oil tank diagram

Fuel cap

Part #A07590

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

Drum Sprocket A04924
#23

Chain brake-drive case cover diagram

Drum sprocket

Part #A04924

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

Lawn & Garden Equipment Screw 82615
Lawn & garden equipment screw

Part #82615

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

Washer 12789
#18

Carburetor-muffler-air filter diagram

Washer

Part #12789

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…

Read more
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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