1-4
Service Information
4st 4/5/6 2011
PowerUnitWorkTable
(mm)
¿60
170
20
70
70
120
120
15
30
30
30
50
35
35
7) Cautions in Disassembling and
Assembling Components
(1) Secure outboard motor to dedicated stand firmly.
(2) Take special care not to scratch painted surfaces or mating
surfaces of cylinder and crankcase.
(3) Replace parts such as packings, gaskets, O rings, oil seals,
spring pins or split pins with new ones after they are
removed. Replace deformed snap rings with new ones.
(4) When replacing parts, be sure to use genuine parts. For
fluids such as gear oil, use genuine product.
(5) Be sure to use special tools that are specified, and perform
the work properly.
(6) When reassembling parts, use their mating marks. For parts
without mating marks, simple marking makes reassembling
easier. Use applicable parts list for reference.
(7) Clean individual parts that have been removed, and check
their condition.
(8) When assembling, be careful of the fit, repair limits, air-
tightness, clogging of oil holes for oil feeding or greasing,
packings, wirings, pipings and other detailed parts. For the
components that use many bolts and nuts such as cylinder
head or crank case, tighten the fasteners in the order shown
by the numbers to prevent uneven tightening. If the numbers
are not shown, tighten the fastners in diagonal or clockwise
order from inner ones to outer ones evenly to specified
torque. In either case, tighten the fastners to the specified
torque in two or three steps. (Reverse the order when
disassembling.)
(9) When installing bearings, face the flat (numbered) side to the
special assembling tool.
(10) When installing oil seals, be careful not to scratch the
surface of the lip that contacts with the shaft, and install them
in correct orientation. Apply recommended grease to the lip
before installation.
(11) When applying liquid sealant, take care to use sparingly.
Excessive application may be oozed out, adversely affecting
interior of the crankcase. Use adhesive after thoroughly
reading the instructions.
(12) When servicing power unit, use of wooden work board
makes the work easier.
SOC
OIL-COMP.
GM
SOC
SOC
1
2
LOR
Liquid O-Ring
LOR
1 Clamp screw
MFS4-5-6Ech01110422.qxd 11.4.22 5:41 PM ページ4
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