7-42
7
4.
Insert the special service tool
4
into the
valve guide
3
, and then ream the valve
guide.
TIP:
• Turn the valve guide reamer clockwise to
ream the valve guide.
• Do not turn the valve guide reamer counter-
clockwise when removing it.
• Make sure to clean the valve guide after
reaming it.
5.
Measure the valve guide inside diameter.
Checking the valve seat
1.
Remove carbon deposits from the
valves.
2.
Apply a thin, even layer of Mechanic’s
blueing dye (Dykem) onto the valve seat.
3.
Press the valve lightly against the valve
seat using the special service tool
1
.
4.
Measure the valve seat contact width
a
where the blueing dye is adhered to the
valve face. Reface the valve seat if the
valve is not seated properly or if the valve
seat contact width is out of specification.
Check the valve guide if the valve seat
contact width is uneven.
Valve guide remover/installer
2
:
90890-06801
Valve guide installation position
a
:
16.3–16.7 mm (0.64–0.66 in)
Valve guide reamer
4
: 90890-06804
Valve guide inside diameter:
Intake and exhaust:
5.500–5.512 mm (0.2165–0.2170 in)
E
2
a
3
3
4
E
Valve lapper
1
: 90890-04101
1
a
Содержание Kingfish 25
Страница 1: ...YAMAHA MOTOR CO LTD F4A F4 Goldfish 4 Kingfish 25 SERVICE MANUAL...
Страница 4: ......
Страница 20: ...0 15 GEN INFO General information MEMO...
Страница 45: ...1 25 SPEC Specification MEMO...
Страница 65: ...2 19 TECH FEA Technical features and description MEMO...
Страница 81: ...3 17 RIG GING Rigging information MEMO...
Страница 215: ...7 67 POWR Power unit MEMO...
Страница 229: ...LOWR Lower unit 8 11 0 A...
Страница 242: ...8 24 8 Shimming Shim location T1 T2 T3 T3 A3 B3 42 5 T1 T2 24 0 24 0 B2 A1 A2 B1 Drive shaft and lower case Shimming...
Страница 259: ...LOWR Lower unit 8 41 5 Install new O rings C and D Ball bearing attachment B 90890 06633 A G B C D...
Страница 392: ...A Appendix Wiring diagram A 1 How to use the wiring diagram A 1...
Страница 394: ......
Страница 395: ......