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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  |
Wrench 89541039131
#3

Tools diagram

Wrench

Part #89541039131

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

Wrench, W/screwdriver X602000020
#2

Tools diagram

Wrench, w/screwdriver

Part #X602000020

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

Kit 2894901
#1

Guide bar/sawing chain/kick guard diagram

Kit

Part #2894901

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

Pipe V471001600
#14

Cylinder cover/ignition switch diagram

Pipe

Part #V471001600

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

Spark Plug A425000000
#12

Ignition/flywheel diagram

Spark plug

Part #A425000000

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

Screw, Idle Adjust 12313404260
#21

Carburetor - wt-820 diagram

Screw, idle adjust

Part #12313404260

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

Chainsaw Drive Gear V651000001
#20

Chain brake diagram

Chainsaw drive gear

Part #V651000001

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

Screw, Clip (4) 12313002960
Screw, clip (4)

Part #12313002960

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

Screw 4x14 90025304014
#21

Handle/throttle control/engine cover diagram

Screw 4x14

Part #90025304014

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…

Read more
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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