Yamaha GRIZZLY Ultramatic YFM660FP, Service Manual

Page: 92 / 408

3 - 15
CHK
ADJ
ADJUSTING THE VALVE CLEARANCE
8.Adjust:
●
Valve clearance
*****************************************************
Adjustment steps:
●
Loosen the locknut
1
.
●
Insert a feeler gauge
2
between the adjuster
end and the valve end.
●
Turn the adjuster
3
clockwise or counter-
clockwise with the tappet adjusting tool
4
until the proper clearance is obtained.
●
Hold the adjuster to prevent it from moving
and then tighten the locknut.
●
Measure the valve clearance.
●
If the clearance is incorrect, repeat the above
steps until the proper clearance is obtained.
*****************************************************
Tappet adjusting tool:
P/N. YM-08035, 90890-01311
T
R
.
.
Locknut:
14 Nm (1.4 m • kg, 10 ft • lb)
9.Install:
●
All removed parts
NOTE:
Install all removed parts in the reverse order of
their disassembly. Note the following points.
10.Install:
●
Recoil starter
●
Spark plug
●
Tappet covers (exhaust)
●
Tappet cover (intake)
LT
T
R
.
.
14 Nm (1.4 m • kg, 10.1 ft • lb)
T
R
.
.
18 Nm (1.8 m • kg, 13 ft • lb)
T
R
.
.
12 Nm (1.2 m • kg, 8.7 ft • lb)
T
R .
.
10 Nm (1.0 m • kg, 7.2 ft • lb)