POWR
5-49
CRANKSHAFT AND PISTON
E
INSTALLING THE PISTON RING
CAUTION:
• Do not scratch the piston nor break the
piston rings.
• After installing the piston rings, check
that they move smoothly.
Install:
•
Oil ring
•
2nd ring
•
Top ring
NOTE:
• Offset the piston-ring end gaps as shown.
• Piston rings should be replaced as a
set.
INSTALLING IN THE ENGINE
CAUTION:
• Check that the upper oil ring gap is
positioned with its locating pin and
then install the piston assembly.
• Install the piston with the "UP" mark
on the piston crown facing towards the
flywheel side.
Install:
•
Piston
INSTALLING THE OIL SEAL
Install:
•
Oil seal
•
Oil seal
CAUTION:
• Do not install the oil seals after tighten-
ing the crankcase bolts or the seal may
be damaged.
• To prevent the inclined seal installation,
install the seals, crankshaft and crank-
case, finger tighten the bolts then
lightly knock the seals.
UP
Piston slider
YU-33294/90890-06529
1
2
1
2
Содержание F40BMHD
Страница 60: ...SPEC 2 12 MAINTENANCE SPECIFICATIONS E DIMENSIONS H9 L3 L7 L6 L2 L1 H2 H1 H7 H4 H3 H8 H6 W5 W6 W1 L4 A1 A3 A2 ...
Страница 126: ...GENERAL 3 25 E CHK ADJ LUBRICATION POINTS Apply Water resistant grease ...
Страница 128: ...CHK ADJ 3 26 GENERAL E ...
Страница 129: ...3 26 CHK ADJ F D ES ...
Страница 272: ...E LOWR BACKLASH 6 34 MEASURING THE FORWARD GEAR BACKLASH 6 34 MEASURING THE REVERSE GEAR BACKLASH 6 36 ...
Страница 528: ......
Страница 529: ......
Страница 536: ......
Страница 537: ...Printed on recycled paper Printed in Japan Sep 1999 1 7 1 F40B YAMAHA MOTOR CO LTD ...