Echo
Gas Line Trimmer

Model #SRM-2100SB Official Echo trimmer/brushcutter

Here are the diagrams and repair parts for Echo SRM-2100SB trimmer/brushcutter, as well as links to manuals and error code tables, if available.

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Parts List

Showing 10 of 223 parts

GRIP, REAR HANDLE#17

Drive shaft/handles/throttle Diagram

Grip, rear handle

Part #35121352130

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

BOLT 4 X 22 (2)#16

Starter/ignition/clutch/fuel system Diagram

Bolt 4 x 22 (2)

Part #90016204022

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

! 1 (SPANISH: + 1)

See All Related Diagrams

! 1 (spanish: + 1)

Part #N/P

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

Ball Bearing#16

Gear housing/shield/tools Diagram

Ball bearing

Part #90085506900

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

NOZZLE, CHECK VALVE#31

Carburetor Diagram

Nozzle, check valve

Part #12537613120

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

Screw

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Screw

Part #90023805016

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

HOUSING ASSEMBLY, D. SHAFT (LOWER -SRM)(INCLUDES ITEMS 41 & 42)#40

Drive shaft/handles/throttle Diagram

Housing assembly, d. shaft (lower -srm)(includes items 41 & 42)

Part #61020654130

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

Model Label#24

Crankcase/fan housing/cover Diagram

Model label

Part #89011256730

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

Line Trimmer Air Filter Cover#6

Intake/exhaust/air filter Diagram

Line trimmer air filter cover

Part #13031306563

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

Starter Assembly#8

Starter/ignition/clutch/fuel system Diagram

Starter assembly

Part #17720054130

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

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank
Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings
Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carburetor

Repair guides for gas line trimmers

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

How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these instructions to do the job in under 30 minutes.

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

If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these instructions to replace the carburetor in under 30 minutes.

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yourself, following these instructions.

Repair difficulty
Time required
 15 minutes or less

Articles and videos for gas line trimmers

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

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March 01, 2016

Grass line trimmer maintenance checklist

Grass line trimmer maintenance checklist

Find out how to take care of your grass line trimmer from the start of the trimming season until the end, with this helpful maintenance checklist.