6. CYLINDER HEAD/VALVES DINK 50/ 125
INSPECTION
Camshaft
Inspect camshaft lobes for
pitting/scratches/blue discoloration.
Measure the cam lobe height.
Service Limits: IN : 30.75 mm (1.23 in)
EX: 30.26 mm (1.2104 in)
If any defects are found, replace the camshaft
with a new one, then inspect lubrication
system.
Camshaft Bearings
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.
Cam chain tensioner
Check the one-way cam operation (tensioner)
Unsmooth operation Replace.
6-11
