Trouble Shooting - Makita EA3500S Instruction Manual

9. Trouble shooting

Malfunction
Chain does not run
Engine does not start or
only with difficulty
Warm start difficulties
Engine starts, but dies
immediately
Insufficient power
No chain lubrication
30
System
Chain brake Engine runs
Ignition system Ignition spark
No ignition spark
Fuel supply Fuel tank is filled
Compression Inside
system
Outside
Mechanical Starter does not engage
malfunction
Carburetor Fuel tank is filled
Ignition spark
Fuel supply Fuel tank is filled
Several systems Engine is idling
may be involved
simultaneously
Oil tank/pump No oil on the chain
Observation
Chain brake actuated.
Malfunction in fuel supply system, compression
system, mechanical malfunction.
STOP switch in
circuit in the wiring, Spark plug cap or spark
plug defective.
Combination switch in Choke position,
carburetor defective, suction head dirty, fuel
line bent or interrupted.
Cylinder base packing ring defective, radial
shaft packings defective, cylinder or piston
rings defective.
Spark plug does not seal.
Spring in starter broken, broken parts inside
the engine.
Wrong carburetor adjustment.
Wrong idling adjustment, suction head or
carburetor dirty.
Tank venting defective, fuel line interrupted,
cable defective, Combination switch defective.
Air filter dirty, wrong carburetor adjustment,
muffler clogged, exhaust channel in cylinder
clogged, spark arrester screen clogged.
Oil tank empty.
Oil guide groove dirty.
Oil-pump adjusting screw incorrectly adjusted.
Cause
position, fault or short-