Assembly And Adjustment; Bearing, Oilseal And O-Ring; Piston - Yamaha Motor 20C Manuel D'entretien

POWR

ASSEMBLY AND ADJUSTMENT

G71003-0
ASSEMBLY AND
ADJUSTMENT

BEARING, OILSEAL AND O-RING

1) Press in the new bearing.
cC
When reassembling the lower crank bearing the
seal-cap side of the bearing should be installed
towards the crank side, as shown in the illustra-
tion.
NOTE:
Install the bearing with its manufacture's numbers
facing out ward.
2) Install the new oil seal in the oil seal housing.
cC
The direction of the oil seal must be as shown in
the illustration, otherwise damage will be
caused.
3) Install the new O-ring.
4) Lubricate the bearing with 2-stroke outboard
motor oil. Apply Marine Grease or equivalent to
the inside lip of the oil seal and to the O-ring.
G72001-0

PISTON

1) Install the 2nd piston ring into the 2nd ring
groove with the marking facing upward.
2) Install the keystone ring into the top ring groove
with the marking facing upward.
3) Align each ring end-gap with there locating
pins.
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