kymco mo bw250 Instruction De Maintenance

CAMSHAFT HOLDER INSPECTION
Inspect the camshaft holder, valve rocker

arms and rocker arm shafts for wear or

damage.

Measure the I.D. of each valve rocker arm.
Service Limits: IN: 10.10mm replace if over

EX: 10.10mm replace if over

Measure each rocker arm shaft O.D.
Service Limits: IN: 9.90mm replace if below

EX: 9.90mm replace if below

First drain the coolant from the radiator and

water jacket, then remove the thermostat

water hose.

Remove the camshaft. (!6-4)

Remove the carburetor and intake manifold.

Remove the bolt attaching the thermostat

housing and the thermostat housing.

Remove the cylinder head.

Remove the dowel pins and cylinder head

gasket.

Remove the cam chain guide.

Remove all gasket material from the cylinder

head mating surface.

Bolt

Cam Chain Tensioner Slipper

Camshaft Holder

If the valve rocker arm contact surface is

worn, check each cam lobe for wear or

damage.

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Be careful not to drop any gasket

material into the engine.

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Rocker Arm Shafts

Cylinder

Cylinder Head Gasket