KEEWAY RKV125 Instruction And Maintenance Manual page 21

Symptom: Engine Overheats
1. Check if gasoline brand being used is too
low or the gasoline has been stored for a
too long time; 2. Check if engine runs at a
high speed for a very long time or
overloaded
1. Check CDI
igniter. 2. Check if
magneto flywheel
or trigger coil
looses.
Diagnosis procedures
Check improper operation method
Yes
Clean
Check and solve it
No.
Check if clutch slips.
Yes No
Engine Overheats
Check cooling system
Air cooling the engine
Check if radiator plates are covered by mud, greasy oil or sand,
Yes
Check if cooling fan or wind scooper is damaged
(forced air cooled engine)
Yes
Yes
No
.
No
No
Use an ignition timing lamp to
check ignition timing of engine