Yamaha F50 Service Manual

							62Y3A117-2
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Symptom: Power trim and tilt unit does not hold the outboard motor up.
Check that the manual release 
plug is closed.
Check the power trim and tilt 
fluid level.
Disassemble the power trim and 
tilt unit, and then check it.
Close the plug.
Add fluid to the correct level.At specified 
level?
Is it closed?
Yes
Yes
No
No
Troubleshooting 
						

							BRKTBracket unit
7-362Y3A11
Symptom: Shift mechanism of the forward gear and reverse gear does not operate properly.
Check the operation of the shift 
rod.
Check the condition of the shift 
rod connection between the 
lower case and upper case.
Disassemble the lower case, 
and then check the shifting gear 
mechanism and the respective 
parts.
Replace the shift rod.
Check the shift cables and links 
of the remote control box.
Check the detent of the bottom 
cowling.
Good operat-
ing condition?
Good operat-
ing condition?
Connected 
properly?
Yes
Yes
Yes
No
No
No
Check the shift cable operation. 
						

							62Y3A117-4
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Special service tools7
Trim and tilt cylinder wrench
YB-06175-2B
Cylinder-end screw wrench
90890-06544
For USA and Canada
For worldwide
Troubleshooting / Special service tools 
						

							BRKTBracket unit
7-562Y3A11
Tiller handle (F50/F50A, T50/FT50B)7 
						

							62Y3A117-6
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No. Part name Q’ty RemarksTightening torques
Stage N·mkgf·mft·lb
1 Tiller handle assembly 1
2 Friction plate 1
3 Tiller handle wiring 
harness1
4 Tiller handle wiring 
harness1  Models applicable for 
tachometer, trim meter or 
warning buzzer
5Grommet 1
6 Clip 1
7 Throttle cable 1
8Plate 1
9Bolt 3 M6 ×
 20 mm
10 Bolt 1 M8 ×
 16 mm 9 0.9 6.5
11 Negative battery lead 1
12 Cable guide 1
13 Grommet 1
14 Nut 1 7 0.7 5.1
15 Washer 1
16 Positive battery lead 1
17 Connector 1
18 Clip 1
19 Shift cable 1
20 Plastic tie 2
21 Cover 1
22 Screw 3 M6 ×
 35 mm
23 Trailer switch coupler 1
24 PTT switch coupler 1 Models with trailer switch
25 Bolt 1 M6 ×
 35 mm
26 Screw 1 M6 ×
 25 mm
27 Collar 1
28 Clamp 1
29 Nut 2 37 3.7 27
30 Bolt 2 M6 ×
 16 mm
Tiller handle (F50/F50A, T50/FT50B) 
						

							BRKTBracket unit
7-762Y3A11 
						

							62Y3A117-8
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No. Part name Q’ty RemarksTightening torques
Stage N·mkgf·mft·lb
31 Nut 2
32 Collar 2
33 Bolt 2 M8 ×
 50 mm
34 Self-locking nut 1
35 Bracket 1
36 Steering lock shaft 1
37 Steering lock knob 1
38 Friction plate 1
39 Friction piece 2
Tiller handle (F50/F50A, T50/FT50B) 
						

							BRKTBracket unit
7-962Y3A11 
						

							62Y3A117-10
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No. Part name Q’ty RemarksTightening torques
Stage N·mkgf·mft·lb
1 Tiller handle sub assembly 1
2 Screw 2 M6 ×
 10 mm
3 Shift lever cover 1
4Bolt 1 M8 ×
 40 mm
5 Shift lever 1
6 Bushing 1
7 Washer 1
8 Bushing 2
9 Nut 1 4 0.4 2.9
10 Engine shut-off switch 1
11 Nut 1 38 3.8 27
12 Washer 1
13 Bracket 1
14 Collar 1
15 Wave washer 1
16 Washer 1
17 Bolt 1
18 Clamp 1
19 Screw 1
20 Connector 2
21 Engine start switch 
housing1
22 Engine start switch 1
23 Nut 1 5 0.5 3.7
24 Bolt 1 M6 ×
 25 mm
25 Screw 1
26 Bolt 1 M6 ×
 20 mm
27 Cover 1
28 Power trim and tilt switch 1
29 Screw 5 M6 ×
 16 mm
30 Screw 2 M6 ×
 16 mm
Tiller handle (F50/F50A, T50/FT50B) 
						

							BRKTBracket unit
7-1162Y3A11