Yamaha FJR1300N 2001 Service Manual page 346

VALVES AND VALVE SPRINGS
1. Measure:
2. Replace:
NOTE:
@
To ease valve guide removal and installation,
and to maintain the correct fit, heat the cylinder
head to 100 °C in an oven.
a. Remove the valve guide with the valve
b. Install the new valve guide with the valve
c. After installing the valve guide, bore the
NOTE:
@
After replacing the valve guide, reface the
valve seat.
5 - 27
• valve-stem-to-valve-guide clearance
Valve-stem-to-valve-guide clearance =
Valve guide inside diameter a –
Valve stem diameter b
Out of specification → Replace the valve
guide.
Valve-stem-to-valve-guide clear-
ance
Intake
0.010 ~ 0.037 mm
<Limit>: 0.08 mm
Exhaust
0.025 ~ 0.052 mm
<Limit>: 0.1 mm
• valve guide
guide remover 1.
guide installer 2 and valve guide remover
1.
valve guide with the valve guide reamer 3
to obtain the proper valve-stem-to-valve-
guide clearance.
Valve guide remover (5 mm)
90890-04097
Valve guide installer (5 mm)
90890-04098
Valve guide reamer (5 mm)
90890-04099
ENG