Poor Performance (At High Speed) - KYMCO VENOX 250 Service Manual

1
. GENERAL INFORMATION

POOR PERFORMANCE (AT HIGH SPEED)

Inspection/Adjustment
Check ignition timing
Check valve clearance
Check fuel tank for
fuel supply
Check carburetor for
clogged jets
Check valve timing
Check valve spring
tension
1-27
Symptom
Correct
Correct
Fuel flows freely Fuel flow restricted
Not clogged
Correct
Not weakened
Faulty CDI unit
Incorrect
Loose A.C. generator stator
Faulty A.C. generator
Improperly adjusted valve clearance
Incorrect
Worn valve seat
Empty fuel tank
Clogged fuel tube or filter
Clogged
Clean and unclog
Cam timing gear aligning marks
Incorrect
not aligned
Weak spring
Faulty spring
VENOX
Probable Cause
250