Checking The Timing Chain And Camshaft Sprocket; Checking The Timing Chain Guides; Checking The Timing Chain Tensioner - Yamaha 2009 Diversion XJ6S Service Manual

Camshaft cap bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
d. Remove the camshaft caps and then mea-
sure the width of the Plastigauge® "2".
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
5. Measure:
Camshaft journal diameter "a"
G
Out of specification → Replace the camshaft.
Within specification → Replace the cylinder
head and the camshaft caps as a set.
Camshaft journal diameter
22.967–22.980 mm
(0.9042–0.9047 in)
EAS23870
CHECKING THE TIMING CHAIN AND
CAMSHAFT SPROCKET
1. Check:
Timing chain "1"
G
Damage/stiffness → Replace the timing
chain and camshaft sprocket as a set.
2. Check:
Camshaft sprocket
G
More than 1/4 tooth wear "a" → Replace the
camshaft sprocket and the timing chain as a
set.
a. 1/4 tooth
b. Correct
1. Timing chain roller
2. Camshaft sprocket
EAS23950

CHECKING THE TIMING CHAIN GUIDES

1. Check:
Timing chain guide (exhaust side) "1"
G
Timing chain guide (intake side) "2"
G
Timing chain guide (top side) "3"
G
Damage/wear → Replace the defective
part(s).
2
EAS23970

CHECKING THE TIMING CHAIN TENSIONER

1. Remove:
Timing chain tensioner rod "1"
G
Timing chain tensioner spring seat "2"
G
Timing chain tensioner inner spring "3"
G
5-12
CAMSHAFTS
3
1