How To Use This Manual - Yamaha F4 Service Manual

HOW TO USE THIS MANUAL

1 To help identify parts and clarify procedure steps, there are exploded diagrams at the
start of each removal and disassembly section.
2 Numbers are given in the order of the jobs in the exploded diagram. A circled number
indicates a disassembly step.
3 Symbols indicate parts to be lubricated or replaced (see "SYMBOLS").
4 A job instruction chart accompanies the exploded diagram, providing the order of jobs,
names of parts, notes in jobs, etc.
Example:
O-ring size
5 Dimension figures and the number of parts, are provided for fasteners that require a
tightening torque:
Example:
Bolt or screw size
6 Jobs requiring more information (such as special tools and technical data) are described
sequentially.
LOWR
LOWER UNIT
LOWER UNIT
EXPLODED DIAGRAM
9
10
3
10 Nm (1.0 m•kg, 7.2 ft•lb)
M6 x 40 mm
5
1st 3 Nm (0.3 m•kg, 2.17 ft•lb)
2nd 8 Nm (0.8 m•kg, 5.8 ft•lb)
REMOVAL AND INSTALLATION CHART
4
Step Procedure/Part name
LOWER UNIT REMOVAL
1 Cotter pin
2 Propeller nut
2
3 Washer
4 Propeller
5 Spacer
6 Bolt (anode)
7 Toothed washer (anode)
8 Anode
9 Grommet
10 Bolt (shift rod connector)
39.5 x 2.5 mm: Inside diameter (D) x ring diameter (d)
10 x 25 mm (2) : M10(D) x 25 mm (L) (2pieces)
1
16
17
15
13
11
zFor long
M6 x 167 mm
14
4
14
5
8
7
6
12
M6 x 16 mm
11
1st 3 Nm (0.3 m•kg, 2.17 ft•lb)
2nd 8 Nm (0.8 m•kg, 5.8 ft•lb)
Q'ty Service points
Follow the left "Step" for removal.
1 Not reusable
1
1
1
1
1
1
1
1
1 NOTE
Set the shift lever to reverse position
and loosen the bolt (shift rod connec-
tor).
6-1
2
LOWR
E
A
15
B
3
1
5
2
3
LOWER CASING CAP ASS'Y
SERVICE POINTS
Lower casing cap/Propeller shaft bearing
1
removal
1. Remove:
9Ball bearing 1
9
Slide hammer set 2:
YB-06096
2 Stopper guide plate 3:
90890-06501
Bearing puller 4:
4
1 90890-06535
Bearing puller craw 5:
90890-06537
Stopper guide stand 6:
90890-06538
A For USA and CANADA
6
B Except for USA and CANADA
Lower casing cap oil seal removal
1. Remove:
9Oil seals 1
9
Slide hammer set:
YB-06096
Stopper guide plate:
1
90890-06501
Bearing puller:
90890-06535
Bearing puller craw:
90890-06537
Stopper guide stand:
90890-06538
Gears inspection
1. Inspect:
9Tooth 9
9 9Dog
Wear/Damage ® Replace.
Bearings inspection
1. Inspect:
9Bearing 9
Pitting/Rumbling ® Replace.
NOTE:
Turn the bearing by fingers and check the
bearing pitching
6-12
E
E
6