Valve Guide Installation - Yamaha WaveRunner FX SHO Service Manual

POWR
a
4
1
b
Cylinder head
2
3
1
E
E

Valve guide installation

1. Install:
• New valve guide 1
Installation steps:
1. Insert the special service tools 2 and 3
into the camshaft end of a new valve guide
1.
Valve guide remover 2:
YB-06801/90890-06801
Valve guide installer 3:
YB-06810/90890-06810
2. Strike the special service tool to drive the
valve guide into the cylinder head.
Valve guide installation height a:
Intake and exhaust:
12.3–12.7 mm (0.484–0.500 in)
3. Insert the special service tool 4 into the
valve guide 1, and then ream the valve
guide.
NOTE:
• Apply engine oil to the inner surface of the
valve guide and surface of the special ser-
vice tool 4.
• Turn the valve guide reamer clockwise to
ream the valve guide.
• Do not turn the special service tool 4 coun-
terclockwise when removing the tool.
Valve guide reamer 4:
YM-01196/90890-06804
4. Clean the valve guide inner surface.
5. Measure the valve guide inside diameter.
Valve guide inside diameter b:
Intake and exhaust:
5.504–5.522 mm
(0.2167–0.2174 in)
5-73
E