Check the connections of spark plug, screws, restart the engine,
if it failed to start again, please send it back to After-sale service
center for repair.
Problem2.
The engine starts after being choked but then stops
soon after.
Solution:
The low needle on the carburetor is probably too lean.
Adjust the Low End needle until you achieve a smooth idle and
a reliable transition to high throttle. Generally if the motor
stutters or coughs in the mid range or when the throttle is
advanced, the low end needle is too rich and possibly even the
high end needle.
Problem3.
The engine runs rough and is vibrating strongly.
Solution:
Balance the propeller. Check the ignition timing. Check your
plumbing for air/fuel leaks
Check your spark plug for carbon and check the spark plug gap.
Check the engine mount to be sure it is rigid. Check to make
sure the engine is mounted on a level surface so that crankcase
is free of tension.
Check the engine and propeller bolts.
Problem4.
The engine doesn't reach a normal RPM at full
throttle.
Solution:
Check:
A. The carburetor settings.
B. See if the propeller is too large.
C. See if the engine is overheating.
D. The ignition timing.
E. The spark plug for defect.
Verify:
A. you have the correct muffler system.
B. you have the correct gasoline, oil, and have mixed them with
the correct ratio.
