Checking The Timing Chain Tensioner - Yamaha 2002 TDM900 Service Manual

CAMSHAFT
EAS00210

CHECKING THE TIMING CHAIN TENSIONER

1. Check:
S timing chain tensioner
Cracks/damage ! Replace.
2. Check:
S one-way cam operation
Rough movement ! Replace the timing
chain tensioner assembly.
a. Lightly press the timing chain tensioner rod
into the timing chain tensioner housing by
hand.
NOTE:
While pressing timing chain tensioner rod, wind
it clockwise with a thin screw driver 1 unitl it
stops.
b. Remove the screwdriver and slowly release
the timing chain tensioner rod.
c. Make sure that the timing chain tensioner rod
comes out of the timing chain tensioner
housing smoothly. If there is rough move-
ment, replace the timing chain tensioner.
3. Check:
S cap bolt
S copper washer
S gasket
Damage/wear ! Replace the defective
part(s).
5-14
ENG