7. TROUBLESHOOTING
ENGINE TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
POSSIBLE SOLUTION
Engine will not
start
Fuel valve OFF
Move fuel lever to ON position
Choke in OPEN position
Move choke lever to CLOSED
position unless engine is warm
Engine switch is OFF
Turn engine switch to ON position
Out of fuel
Fill with fresh straight unleaded
petrol
Poor quality fuel; engine stored
without treating or draining petrol,
or refueled with bad petrol
Drain fuel system and refill with
fresh straight unleaded petrol
Spark plug faulty, fouled or
improperly gapped
Remove and inspect spark plug,
clean, re-gap or replace
Spark plug wet with fuel – flooded
engine
Remove and inspect spark plug.
Dry and reinstall spark plug restart
engine with throttle lever in FAST
position
Fuel filter clogged, carburetor
malfunction, ignition malfunction,
valves stuck.
Return to dealer for service/repair.
Engine lacks
power
Filter element(s) clogged
Check air filter clean or replace as
required
Poor quality fuel; engine stored
without treating or draining petrol,
or refueled with bad petrol
Drain fuel system and refill with
fresh straight unleaded petrol
Fuel filter clogged, carburetor
malfunction, ignition malfunction,
valves stuck.
Return to dealer for service/repair.
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