KEEWAY FACT 50 4T Maintenance Manual page 21

Diagnosis on engine overheating
1. Check whether gasoline grade is
improper or gasoline is stored for
a long time
2. Check whether the engine works
at high speed for a long time or
with overload during driving
1. Check
CDI
device is in good
condition
2. Check
flywheels
trigger
loosened
Check whether operation is correct
Y
Y
Clean
Y
Inspection & solution
N
whether
ignition
whether
and
coil are
Engine overheating
Check cooling system
Air-cooled engine
Check whether heat sink is spotted or there
is too much oil stain
Check whether cooling fan or air
director is damaged (forcedly air-
cooled engine)
Check whether clutch is slipping
Y
Slipping clutch
Solution to
slipping clutch
21
N
N
N
Check whether ignition is
timely conducted with an
ignition timing lamp
Y
N