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30
TROUBLE SHOOTING
Symptom
Cause
Corrective action
Engine fails to fire.
Fuel tank is empty.
Fuel not reaching the engine.
Fill the tank with fuel and repeat
Priming procedure.
Glowplug element is burnt out.
Glowplug battery discharged
Replace glowplug.
Recharge or replace the battery.
Clogged fuel filter
Silencer inside is dirty.
Clean or replace fuel filter.
Clean inside silencer.
Over priming
Remove glowplug and pump excess fuel.
Fuel tubing is disconnected.
Connect fuel tubing securely.
Fuel tubing is kinked, split or has a hole.
Check the tubing carefully and replace if necessary.
Incorrect carburetor settings
Return the needle valve
and mixture control valve to basic position.
Incorrect servo linkage
Re-linkage after setting servo at neutral.
Reverse rotating direction of electric starter.
Mare sure it rotates counter clockwise seen
from crankshaft side.
31
Symptom
Cause
Corrective action
Engine fires intermittently but does not run.
Insufficient fuel in the tank.
Fill the tank with fuel.
Deteriorated glowplug
Replace glowplug.
Clogged fuel filter
Silencer inside is dirty.
Clean or replace fuel filter.
Clean inside silencer.
Engine overheated
Wait until engine is cooled.
Disconnecting plug battery too soon.
Do not disconnect plug battery and wait until
r.p.m. become stable.
Air bubbles in fuel
Fit O rings to the tank screws to
prevent bubbles.