Name: KYMCO Bet & Win 250
Brand: KYMCO
Rating: 5 (1 reviews)

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6. CYLINDER HEAD/VALVES

6-8

Bet & Win 2 50

INSPECTION

CYLINDER HEAD

Check the spark plug hole and valve areas for

cracks.

Check the cylinder head for warpage with a

straight edge and feeler gauge.

Service Limit: 0.05mm repair or replace if

over

VALVE SPRING FREE LENGTH

Measure the free length of the inner and outer

valve springs.

Service Limits:

Inner (IN, EX)

: 29.5mm replace if below

Outer (IN, EX): 39.5mm replace if below

VALVE /VALVE GUIDE

Inspect each valve for bending, burning,

scratches or abnormal stem wear.

Check valve movement in the guide.

Measure each valve stem O.D.

Service Limits: IN: 4.925mm replace if

below

EX: 4.925mm replace if

below

CYLINDER HEAD ASSEMBLY

Install the valve spring seats and stem seals.

Lubricate each valve stem with engine oil and

insert the valves into the valve guides.

Be sure to install new valve stem seals.

Straight Edge

Feeler Gauge

Valve Spring Compressor

www.PlanDeGraissage.org

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KYMCO Bet & Win 250 Specifications

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