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Tecumseh TYPE 670-21 2-cycle engine Parts
Here are the diagrams and repair parts for Tecumseh TYPE 670-21 2-cycle engine, as well as links to manuals and error code tables, if available.
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Browse Parts for TYPE 670-21 2-Cycle Engine
Carburetor no. 631534 diagram
Screw
Part #631562
The manufacturer no longer makes this part, and there's no substitute part
Carburetor no. 631534 diagram
Seat/gaskt
Part #631010
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Washer
Part #650168
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Control Lever
Part #570421
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Cover
Part #610118
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Cover
Part #450216
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Gasket
Part #510257
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Screw
Part #650431
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Muffler
Part #390276
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Cleaner Body
Part #450232
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.
Main causes: bad gas, engine needs tune up, cracked fuel lines, dirty carburetor…
Main causes: cracked fuel lines, leaky carburetor seals, damaged fuel tank cap, cracked fuel tank…
Main causes: stale gasoline, cracked fuel lines, dirty carburetor, damaged spark plug, worn piston rings…
Repair guides for gas chainsaws
These step-by-step repair guides will help you safely fix what’s broken on your chainsaw.
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…
Repair time and Difficulty
15 minutes or less
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…
Repair time and Difficulty
15 minutes or less
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…
Repair time and Difficulty
15 minutes or less
Effective articles & videos to help repair your lawn & garden engines
Use the advice and tips in these articles and videos to get the most out of your chainsaw.
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Learn about the main parts of a lawn mower and when to replace parts.…
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