10-22
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CRANKSHAFT/PISTON/VALVES
Lap the valves into their seats, using a commercially
available valve lapper [1] and lapping compound.
• Do not push the valve against the seat with force
during lapping. Apply a light pass with the valve
lapper.
• Avoid lapping the valve in the same position as it
causes uneven wear. Lap the valve by turning the
lapper slowly.
• Take care not to allow the lapping compound to
enter the gap between the stem and guide.
After lapping, wash all residual compound off the
cylinder and valve.
CRANKSHAFT OIL SEAL
REPLACEMENT
CRANKCASE COVER SIDE
Remove the oil seal.
Drive a new oil seal [1] in the position as shown using
the special tools.
CRANKCASE SIDE
Remove the oil seal.
Drive a new oil seal [1] in the position as shown using
the special tools.
INSTALLATION DEPTH: 1.0 – 1.5 mm (0.04 – 0.06 in)
TOOLS:
Attachment, 62 x 64 mm [2] 07947-6340400
Driver [3] 07749-0010000
1.0 – 1.5 mm
(0.04 – 0.06 in)
[3]
[2]
[1]
(Lips)
INSTALLATION DEPTH: 4.5 – 5.0 mm (0.18 – 0.20 in)
TOOLS:
Attachment, 37 x 40 mm [2] 07746-0010200
Driver [3] 07749-0010000
4.5
–
5.0 mm
(0.18
–
0.20 in)
[3]
[2]
[1]
(Lips)