Checking The Timing Chain, Camshaft Sprockets, And Timing Chain Guides - Yamaha FZS600'98 Service Manual

1
CAMSHAFT
4. Measure:
S camshaft-journal-to-camshaft-cap clear-
ance
Out of specification ! Measure the cam-
shaft journal diameter.
Camshaft-journal-to-
camshaft-cap clearance
0.08 mm
a. Install the camshaft into the cylinder head
(without the dowel pins and camshaft
caps).
b. Position a strip of Plastigauge
the camshaft journal as shown.
c. Install the dowel pins and camshaft caps.
NOTE:
S Tighten the camshaft cap bolts in stages
and in a crisscross pattern, working from
the inner caps out.
S Do not turn the camshaft when measuring
the camshaft journal-to-camshaft cap
clearance with the Plastigauge .
Camshaft cap bolt
10 Nm (1.0 mSkg)
a. Remove the camshaft caps and then
measure the width of the Plastigauge
1 .
EB401421
CHECKING THE TIMING CHAIN,
CAMSHAFT SPFROCKETS, AND TIMING
CHAIN GUIDES
The following procedure applies to all of the
camshaft sprockets and timing chain guides.
1. Check:
S timing chain 1
Damage/stiffness ! Replace the timing
chain and camshaft sprockets as a set.
2. Check:
S camshaft sprocket
More than 1/4 tooth a wear ! Replace
the camshaft sprockets and the timing
chain as a set.
a 1 / 4 tooth
Correct
b
Timing chain roller
1
Camshaft sprocket
2
3. Check:
S timing chain guide (exhaust side)
S timing chain guide (intake side)
S timing chain guide (top side)
Damage/wear ! Replace the defective
part(-s).
4-10
ENG
1 onto