Valve Clearance; Carburetor Idle Speed - KYMCO Bet & Win 125 User Manual

3
. INSPECTION/ADJUSTMENT

VALVE CLEARANCE

• Inspect and adjust valve clearance while
the engine is cold (below 35
Remove the cylinder head cover.
Turn the A.C. generator flywheel to the top
dead center (TDC) on the compression stroke
so that the "T" mark on the flywheel aligns
with the index mark on the left crankcase
cover.
Inspect and adjust valve clearance.
Valve Clearance: IN: 0.1mm
Loosen the lock nut and adjust by turning the
adjusting nut
Special
Valve Wrench
• Check the valve clearance again after
the lock nut is tightened.

CARBURETOR IDLE SPEED

• The engine must be warm for accurate
idle speed inspection and adjustment.
Lift up the seat and remove the inspection
cover.
Warm up the engine before this operation.
Start the engine and connect a tachometer.
Turn the throttle stop screw to obtain the
specified idle speed.
Idle Speed: 1600rpm
When the engine misses or run erratic, adjust
the pilot screw.
).
EX: 0.1mm
Bet & Win 125/150
Bolts
Cylinder Head Cover
"T" Mark
Feeler Gauge
Throttle Stop Screw
Top Dead
Center
Valve Wrench
Pilot Screw
3-6