60C5D11
5-28
1
2
3
4
5
6
7
8
9
Replacing the valve guides
1.
Remove the valve guide
1
by striking
the special service tool from the combus-
tion chamber side.
2.
Install the new valve guide
2
by striking
the special tool from the camshaft side to
the specified position
a
.
NOTE:
• Before installing the valve guide, mark its
installation position
b
as shown.
• Apply engine oil to the surface of the new
valve guide.
3.
Insert the special service tool into the
valve guide
2
, and then ream the valve
guide.
NOTE:
• Turn the valve guide reamer clockwise to
ream the valve guide.
• Do not turn the reamer counterclockwise
when removing the reamer.
4.
Measure the valve guide inside diameter.
Replace the valve guide if out of specifi-
cation.
Checking the valve seat
1.
Eliminate carbon deposits from the valve
with a scraper.
2.
Apply a thin, even layer of Mechanic’s
blueing dye (Dykem) onto the valve seat.
3.
Lap the valve slowly on the valve seat
with a valve lapper (commercially obtain-
able) as shown.
Valve guide remover/installer:
90890-04064
Valve guide position
a
:
11.5 mm (0.45 in)
Valve guide remover/installer:
90890-04064
Valve guide reamer: 90890-04066
Valve guide inside diameter:
6.01–6.02 mm (0.2367–0.2370 in)
S60C5500
Cylinder head
Summary of Contents for F100B
Page 1: ...SERVICE MANUAL 60C 28197 5D 11 290429 F100B F100C ...
Page 52: ...SPEC Specifications 2 17 60C5D11 MEMO ...
Page 162: ...LOWR Lower unit 6 15 60C5D11 Drive shaft and lower case F100B 6 ...
Page 190: ...LOWR Lower unit 6 43 60C5D11 Drive shaft and lower case F100C 6 ...
Page 200: ...LOWR Lower unit 6 53 60C5D11 Shimming F100C 6 ...
Page 209: ...60C5D11 7 2 1 2 3 4 5 6 7 8 9 MEMO Special service tools ...
Page 210: ...BRKT Bracket unit 7 3 60C5D11 Tiller handle 7 ...
Page 212: ...BRKT Bracket unit 7 5 60C5D11 ...
Page 214: ...BRKT Bracket unit 7 7 60C5D11 ...
Page 244: ...BRKT Bracket unit 7 37 60C5D11 Gear pump F100B 7 ...
Page 341: ......
Page 343: ......
Page 344: ...YAMAHA MOTOR CO LTD Printed in the Netherlands Jun 2001 0 5 1 CR F100BET F100CET E ...