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6
. CYLINDER HEAD/VALVES
Rocker Arm Shafts
CAMSHAFT HOLDER INSPECTION
Inspect the camshaft holder, valve rocker
arms and rocker arm shafts for wear or
damage.
If the valve rocker arm contact surface is
worn, check each cam lobe 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

CYLINDER HEAD REMOVAL

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.
Be careful not to drop any gasket
material into the engine.
GRAND DINK 250
Camshaft Holder
Rocker Arm Shafts
Bolt
Cylinder Head Gasket
6-6

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