Yamaha F50 Service Manual

							62Y3A117-42
1
2
3
4
5
6
7
8
I
4. Install the upper and lower mounting
bolts into the swivel bracket 9
 simulta-
neously.
5. Install the upper mounting nut 0
 and
lower mounting nut A
, and then tighten
them to the specified torques.
6. Install the cover B
 by installing the
screw.
Upper mounting nut 0
:
24 N·m (2.4 kgf·m, 17 ft·lb)
Lower mounting nut A
:
42 N·m (4.2 kgf·m, 30 ft·lb)
Upper case 
						

							BRKTBracket unit
7-4362Y3A11
Clamp brackets7 
						

							62Y3A117-44
1
2
3
4
5
6
7
8
I
No. Part name Q’ty RemarksTightening torques
Stage N·mkgf·mft·lb
1 Swivel bracket assembly 1
2 Screw 1 EHT/ET models
M6 ×
 15 mm20.21.4
3 Trim sensor 1 EHT/ET models
4 Trim sensor coupler 1 EHT/ET models
5 Plastic tie 1
Not reusable
6 Self-locking nut 2 23 2.3 17
7Cap 2
8Bolt 1 M6 ×
 25 mm
9 Anode 1
10 Port clamp bracket 1
11 Washer 2
12 Bushing 2
13 Through tube 1
14 Bolt 2 M6 ×
 25 mm
15 Anode 1
16 Ground lead 1
17 Grease nipple 1
18 Screw 1 M6 ×
 8 mm
19 Starboard clamp bracket 1
Clamp brackets 
						

							BRKTBracket unit
7-4562Y3A11
Removing the clamp brackets
1. Remove the power trim and tilt or hydro
tilt. For removing procedures, see
“Removing the power trim and tilt/hydro
tilt” in this chapter.
2. Loosen the self-locking nuts 1
, and then
remove clamp brackets 2
 and 3
. 
3. Remove the trim sensor 4
.
Installing the clamp brackets
1. Install the trim sensor 1
 onto the port
clamp brackets. 
NOTE:
Adjust the trim sensor after installing the
power trim and tilt.
2. Assemble the clamp brackets and the
swivel bracket by installing the self-lock-
ing nuts 2
, then tightening them to the
specified torque.
3. Install the power trim and tilt or hydro tilt.
For installing procedures, see “Installing
the power trim and tilt” in this chapter.
Self-locking nut 2
:
23 N·m (2.3 kgf·m, 17 ft·lb) 
						

							62Y3A117-46
1
2
3
4
5
6
7
8
I
4. Inject grease into both grease nipples
until grease comes out from the bushings
a
.
Adjusting the trim sensor
1. Fully tilt the outboard up, and then sup-
port it with the tilt stop lever 1
.
 WARNING
After tilting up the outboard, be sure to
support it with the tilt stop lever.
Otherwise, the outboard could suddenly
lower if the power trim and tilt unit should
lose fluid pressure.
2. Loosen the cam screws 2
.
3. Adjust the position of the trim sensor 3
,
and then tighten the screws 2
 finger
tight.4. Fully tilt the outboard down.
5. Measure the trim sensor resistance.
Repeat steps 1–5 if out of specification.
6. Fully tilt the outboard up, and then sup-
port it with the tilt stop lever.
 WARNING
After tilting up the outboard, be sure to
support it with the tilt stop lever.
Otherwise, the outboard could suddenly
lower if the power trim and tilt unit should
lose fluid pressure.
7. Tighten the cam screws 2
 to the speci-
fied torque.
8. Fully tilt the outboard down.
Trim sensor setting resistance:
Pink (P) – Black (B)
9–11 Ω
 at 20 °C (68 °F)
Trim sensor cam screw 2
:
2 N·m (0.2 kgf·m, 1.4 ft·lb)
Clamp brackets 
						

							BRKTBracket unit
7-4762Y3A11
Swivel bracket and steering arm7 
						

							62Y3A117-48
1
2
3
4
5
6
7
8
I
No. Part name Q’ty RemarksTightening torques
Stage N·mkgf·mft·lb
1 Steering arm 1
2 Washer 1
3 Bushing 1
4 O-ring 2
Not reusable
5 Bushing 2
6 Swivel bracket 1
7 Bushing 1
8 Port tilt stop lever 1
9 Circlip 1
10 Steering yoke 1
11 Bushing 1
12 Bushing 1
13 Tilt stop lever joint 1
14 Spring holder 1
15 Bolt 1 M6 ×
 10 mm
16 Spring 1
17 Bushing 1
18 Pin 2
19 Bushing 1
20 Starboard tilt stop lever 1
Swivel bracket and steering arm 
						

							BRKTBracket unit
7-4962Y3A11
Removing the steering arm
1. Remove the circlip 1
.
2. Remove the steering yoke 2
 by striking
it with a plastic hammer.
3. Remove the steering arm from the swivel
bracket by pulling the arm off the bracket.
Installing the steering arm
1. Install the washer 1
, bushing 2
, O-ring
3
, and bushing 4
 onto the steering arm
5
.
2. Place the swivel bracket 6
 in an upright
position, and then install the steering arm
onto the swivel bracket.
3. Install the bushing 7
, O-ring 8
, and
bushing 9
 onto the swivel bracket.4. Install the steering arm 5
 into the steer-
ing yoke 0
 by aligning the center a
 of
the yoke with the center b
 of the steer-
ing arm.
5. Install the circlip A
. 
						

							62Y3A117-50
1
2
3
4
5
6
7
8
I
6. Inject grease into the grease nipple until
grease comes out from both the upper
and lower bushings c
.
Swivel bracket and steering arm 
						

							BRKTBracket unit
7-5162Y3A11
Power trim and tilt unit7