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7. CYLINDER HEAD/VALVES
(Mongoose/KXR 90) Mongoose/KXR 90/50
CAMSHAFT HOLDER ASSEMBLY
Reverse the "CAMSHAFT HOLDER
DISASSEMBLY" procedures.
Align the cross cutout on the exhaust
valve rocker arm shaft with the bolt of
the camshaft holder.
Camshaft Bearings
CAMSHAFT INSPECTION
Check each camshaft bearing for play or
damage. Replace the camshaft assembly
with a new one if the bearings are noisy or
have excessive play.
Inspect camshaft lobes for
pitting/scratches/blue discoloration.
Measure the cam lobe height.
Service Limits:
IN : 26.33mm replace if below
EX: 25.65mm replace if below
If any defects are found, replace the
camshaft with a new one, then inspect
lubrication system.
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