Inspect the camshaft sprocket in the following procedures:
If they are worn or damaged, replace the sprocket/ camshaft assembly and cam chain as a set.

Camshaft inspection
Cam chain tension adjuster inspectionSchematic and routing diagram
Engine lubrication system chart diagram
Engine lubrication circuit diagram
...
Balancer shaft journal bearing removal and
installation
Refer to “engine bottom side disassembly” (page 1d-
49).
Refer to “engine bottom side assembly” .
Removal
Remove the balancer shaft journal bearings (1).
Note
do not remove the bearings (1) unless
absolutely necessary.
Make a note of where the bearings are
r ...
Muffler / muffler chamber / exhaust pipe
removal and installation
Removal
Loosen the muffler connecting bolts (1).
Remove the mufflers (2) by removing the mounting
bolt and nut (3).
Note
support the muffler to prevent it from falling.
Remove the side cowlings. Refer to “exterior parts
removal and installation” in secti ...