TROUBLESHOOTING
Symptom Cause Action
he engine will not
start
Fuel valve closed. Open the fuel valve.
User error
Choke valve open. Close the choke with cold engine.
Engine switch in OFF position.
urn engine switch to ON
Fuel system
Fuel tank empty. Fill with fuel.
Machine stored without
observing proper procedure
from chapter
“ Storage/Winter storage”.
Clean tank, sludge reservoir and
empty carburetor.
Fill the tank with fresh fuel.
Contamination, water or ice in
fuel system.
Clean tank, sludge reservoir,
fuel lines and carburetor fill the tank
with fresh fuel.
Carburetor problems.
Spark plug Wrong spark plug type. Replace the spark plug.
Buildup on electrodes. Check electrode gap and clean or
replace spark plug.
or
Short circuit. Replace the spark plug.
Gasoline or oil on the spark
plug.
Clean the spark plug. Air the engine
out.
Start with full Throttle.
No spark
after service
Faulty engine switch, cable or
ignition.
Contact
workshop.
an authorized service
Low
compression
authorized
Serious interior engine
damage or faulty valves.
Contact a service workshop.
Engine lacks power or runs unevenly
Air filter Clogged air filter. Clean or replace the air filter.
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