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Echo
Gas Chainsaw

Model # CS-400 Official Echo chainsaw

Here are the diagrams and repair parts for Official Echo CS-400 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 212 parts  |
Cushion (2) 10091060030
#15

Handle/throttle control/engine cover diagram

Cushion (2)

Part #10091060030

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

Pipe, Return-3x5x110 (repower Bulk Option: 90014) V471001831
#20

Cylinder cover/ignition switch diagram

Pipe, return-3x5x110 (repower bulk option: 90014)

Part #V471001831

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

Piston Ring A101000160
#5

Engine/short bloc--sb1089 diagram

Piston ring

Part #A101000160

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

Screw 5x16 9114505016
Screw 5x16

Part #9114505016

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

Clip 13201309820
Clip

Part #13201309820

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

Handle Grip 35111119830
#22

Handle/throttle control/engine cover diagram

Handle grip

Part #35111119830

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

Screw, Metering Lever Pin 12313903930
#26

Carburetor - wt-820 diagram

Screw, metering lever pin

Part #12313903930

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

Spark Plug Cap A427000012
#9

Ignition/flywheel diagram

Spark plug cap

Part #A427000012

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

Needle, Mixture Adjustment (2) 12312306331
#20

Carburetor - wt-820 diagram

Needle, mixture adjustment (2)

Part #12312306331

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

Nut 90051600005
#5

Exhaust diagram

Nut

Part #90051600005

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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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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Why does my chainsaw run roughly?

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

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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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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 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
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

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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