CAMSHAFT SPROCKETS
The fixed position of each camshaft sprocket is determined by
arrow mark "3" for the intake camshaft, and by arrow marks "1"
and "2" for the exhaust camshaft, as located in reference to the
notch 1 on the right end of each camshaft.
Inspect the teeth of each camshaft sprocket for wear or damage.
If they are worn or damaged, replace the sprockets and cam chain
as a set.
• Apply THREAD LOCK SUPER "1303" to the threads of the cam-
shaft sprocket bolts and then tighten them to the specified
torque.
& 99000-32030: THREAD LOCK SUPER "1303"
% Camshaft sprocket bolt: 25 N . m (2.5 kgf . m, 18.0 lb-ft)
CAM CHAIN TENSIONER
The cam chain tensioner is maintained at the proper tension by
an automatically adjusted tensioner.
Unlock the ratchet mechanism 1 and move the push rod 2 in
place to see if it slides smoothly. If it does not slide smoothly or
the ratchet mechanism is worn or damaged, replace the cam chain
tensioner with a new one.
CAM CHAIN GUIDE
Check the contacting surface of the cam chain guide. If it is worn
or damaged, replace it with a new one.
CAM CHAIN TENSIONER GUIDE
Check the contacting surface of the cam chain tensioner guide. If
it is worn or damaged, replace it with a new one.
If it is necessary to replace the cam chain tensioner guide, re-
move the engine and separate the upper and lower crankcases.
($3-23)
IN.
ENGINE
3-51
EX.