POWR
Power unit
5-31
6D93G11
4.
Use a 60° cutter to adjust the contact
width of the bottom edge of the valve
seat.
b
Previous contact width
5.
Use a 45° cutter to adjust the contact
width of the valve seat to specification.
b
Previous contact width
c
Specified contact width
6.
If the valve seat contact area is too wide
and situated in the center of the valve
face, use a 30° cutter to cut the top edge
of the valve seat, a 60° cutter to cut the
bottom edge to center the area and set
its width.
b
Previous contact width
7.
If the valve seat contact area is too nar-
row and situated near the top edge of the
valve face, use a 30° cutter to cut the top
edge of the valve seat. If necessary, use
a 45° cutter to center the area and set its
width.
b
Previous contact width
8.
If the valve seat contact area is too nar-
row and situated near the bottom edge of
the valve face, use a 60° cutter to cut the
bottom edge of the valve seat. If neces-
sary, use a 45° cutter to center the area
and set its width.
b
Previous contact width
9.
Apply a thin, even layer of lapping com-
pound onto the valve seat, and then lap
the valve using a valve lapper (commer-
cially available).
S69J5890
60˚
b
S69J5900
45˚
b
c
Содержание F80B
Страница 1: ...F80B F100D SERVICE MANUAL 6D9 28197 3G 11 ...
Страница 4: ......
Страница 46: ...CHK ADJ Periodic checks and adjustments 3 17 6D93G11 MEMO ...
Страница 137: ...6D93G11 6 14 1 2 3 4 5 6 7 8 9 Bearing inner race attachment 0 90890 06661 Propeller shaft housing ...
Страница 148: ...LOWR Lower unit 6 25 6D93G11 Shimming 6 ...
Страница 153: ...6D93G11 6 30 1 2 3 4 5 6 7 8 9 MEMO Backlash ...
Страница 215: ...6D93G11 8 12 1 2 3 4 5 6 7 8 9 S60V8265 Br B Fuel control system Starting system ...
Страница 244: ...Index i 4 6D93G11 U Upper case 7 6 V Vapor separator 4 10 Ventilation 1 3 Y Yamaha Diagnostic System 9 2 ...
Страница 245: ...6D93G11 i 5 1 2 3 4 5 6 7 8 9 Index MEMO ...
Страница 247: ......
Страница 248: ...YAMAHA MOTOR CO LTD Printed in the Netherlands Nov 2004 1 2 1 CR E ...