Echo SRM-400 User Manual download pdf (Page 20)

Improper fuel used Use fuel with correct mixing ratio.

Never use gasoline of poor quality.

Spark plug defective (burnt) Replace.

As cooling fins clogged, air Clean fins.

does not pass well

Excessive deposits in Disassemble and remove carbon.

combustion chamber

Plug damaged or fouled Replace or clean.

Combustion poor due to Check wiring.

defective wiring

High-speed needle Readjust.

setting incorrect

Carburetor overflow Refer to Table 1.

Air cleaner clogged Clean as necessary.

Compression insufficient Disassemble, check and replace

(piston ring stuck or worn if necessary.

out)

Cylinder chromium plating Replace cylinder.

peeled or worn out

Exhaust port clogged with Clean as necessary.

carbon

Throttle is not fully open Readjust.

Improper setting Set properly.

Height of cutter uneven Correct properly.

Overloaded Adjust load.

Clutch shoe worn out Replace.

Table 2

• Inspect and adjust every part of the unit.

- Completely clean every part, and repair, if

necessary.

- Apply thin coating of oil on metal parts to

prevent rust.

- Remove the cutter head, apply sufficient oil

coating and wrap up in plastic.

LONG TERM STORAGE

• Drain fuel tank, pull starter handle slowly a few

times to drain fuel from carburetor.

• Pour a small amount of clean motor oil into

spark plug hole, pull starter handle and then

crank the engine until TOP DEAD CENTER.

• Store in a dry area, free from dust.

Engine overheated

Carburetor defective

Other troubles

Firing function defective

Blade does not cut well

Blade does not rotate

Machine does not trim properly

Engine speed insufficient

Eengine runs normally

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Echo SRM-400 User Manual Page 20

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