User Manual
10
(EN)
TROUBLESHOOTING GUIDE
Possible Cause Soultion
Engine does not start
Out of fuel. Refill the tank and follow starting instructions.
Engine flooded. Remove the spark plug. Install the spin-start and turn
the engine over for 2 seconds. Replace and test.
Air filter is clogged. Check and replace if necessary.
Fuel mixture is old or bad. Mix fresh fuel per instructions.
Spark plug is not working. Check the spark plug and CDI and replace if necessary.
Throttle servo failed/Setup is wrong. Check servo operation. Set it to neutral and reset
the linkage according to your radio and model
manufacturer's specifications.
Carburetor is incorrectly adjusted. Return the carburetor to the factory settings and retune
if necessary.
Piston and cylinder is worn. Check the piston and cylinder for wear or damage and
replace if necessary.
Vehicle or CDI not powered ON. Power on the vehicle or CDI.
Engine starts then stalls
Out of fuel. Refill the tank and follow starting instructions.
Air filter is clogged. Check and replace if necessary.
Engine may be overheated. Let the engine cool. Reset the carburetor to factory
settings and restart.
Engine idle is too low. Follow the instructions to increase idle speed.
Carburetor is incorrectly adjusted. Return the carburetor to the factory settings and retune
if necessary.
Clutch is slipping or locked-up. Check the clutch for worn/broken clutch shoe or spring.
Also check clutch bearings and ensure free rotation.
Fuel mixture is old or bad. Mix fresh fuel per instructions.
Throttle servo is improperly set up. Set the servo to neutral and reset the linkage according
to radio and model manufacturer's specifications.










