Yamaha XVZ13TF 1999, Service Manual

Page: 162 / 501

4-18
CAMSHAFTS
ENG
CAUTION:
NOTE:
NOTE:
NOTE:
CAUTION:
Be sure to keep the timing chain as tight as
possible on the exhaust side.
Remove the wire from the timing chain.
Do not turn the camshaft, as damage could
occur to the pistons and valves.
c. Install intake and exhaust camshaft caps #1,
#3, and finally #4.
At this point, do not install intake camshaft cap
#2, exhaust camshaft cap #2, and the timing
chain guide (top side).
d. Align the mark
a
on the camshaft with the
mark b camshaft cap.
Cylinder #1 is at TDC when the small hole in the
camshaft is aligned with the camshaft cap mark.
e. Apply engine oil onto the threads of the cam-
shaft cap bolts.
f. Tighten the camshaft cap bolts.
The camshaft caps are numbered from right to
left.
First, tighten intake and exhaust camshaft cap
bolts #3, #1, and finally #4.
Tighten the camshaft cap bolts in stages and in
a crisscross pattern, working from the inner
caps out.
The camshaft cap bolts must be tightened
evenly or damage to the cylinder head, cam-
shaft caps, and camshafts will result.
Camshaft cap bolt
10 Nm (1.0 m kg)
g. Apply engine oil onto the camshaft bearing
surfaces, camshaft lobes, and camshaft
journals.
2. Install:
intake camshaft sprocket
exhaust camshaft sprocket
(onto the camshafts)