ZHEJIANG KAYO MOTOR CO., LTD.
www.kayomoto.com
- 62 -
Cylinder head gasket
is broken
Improper valve timing
Re-start the engine
The engine ignites but
does not start
The choke door is
opened too much
Improper adjustment
of the carburetor
fine-tuning screw
Engine does not ignite
Air intake pipe leaks
Incorrect ignition
timing
Remove the spark
plug
Wet spark plug
The carburetor oil
level is too high
The carburetor choke
is closed too tightly
Spark plug dry
Excessive throttle
The engine performs
poorly at low or idling
speeds
Check valve timing
and valve clearance
Incorrect
Improper valve
clearance adjustment
or poor quality of
rocker arm adjustment
screws
Correct
Improper adjustment
of gas timing
Check the adjustment
of the fine adjustment
screw of the
carburetor plunger
Incorrect
Improper adjustment
Correct
/
Check whether the
carburetor gasket is
leaking
Air leak
Deterioration of
carburetor seal ring
Airtight
Loose carburetor
Damaged carburetor
gasket
Remove the spark
plug and perform a
spark test
Weak sparks or
intermittent sparks
The spark plug is
faulty or carbon
deposits
The electronic igniter
is malfunctioning
The magneto is faulty
