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Yamaha F50 Service Manual

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Page 56 SPECSpecifications
2-1362Y3A11
2nd ring
Dimension B mm (in) 1.47–1.49 (0.058–0.059)
Dimension T mm (in) 2.49–2.51 (0.098–0.099)
End gap mm (in) 0.30–0.50 (0.012–0.020)
Side clearance mm (in) 0.03–0.07 (0.001–0.003)
Oil ring
Dimension B mm (in) 2.34–2.46 (0.092–0.097)
Dimension T mm (in) 2.75 (0.108)
End gap mm (in) 0.20–0.70 (0.008–0.028)
Side clearance mm (in) 0.05–0.19 (0.002–0.008)
Camshafts
Intake (A) mm (in) 30.89–30.99 (1.2161–1.2200)
Exhaust (A) mm (in) 30.82–30.92 (1.2135–1.2175)
Intake and...

Page 57 62Y3A112-14
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Margin thickness (D)
Intake mm (in) 0.6–1.0 (0.024–0.039)
Exhaust mm (in) 0.7–1.1 (0.028–0.043)
Stem diameter
Intake mm (in) 5.48–5.49 (0.2157–0.2161)
Exhaust mm (in) 5.46–5.47 (0.2150–0.2153)
Guide inside diameter
Intake and exhaust mm (in) 5.50–5.51 (0.2165–0.2169)
Stem-to-guide clearance
Intake mm (in) 0.01–0.03 (0.0004–0.0012)
Exhaust mm (in) 0.03–0.05 (0.0012–0.0020)
Stem runout limit mm (in) 0.03 (0.0012)
Valve springs
Free length mm (in) 39.85 (1.569)
Minimum free...

Page 58 SPECSpecifications
2-1562Y3A11
Oil pump
Type Trochoid
Outer rotor-to-housing
clearancemm (in) 0.09–0.15 (0.004–0.006)
Outer rotor-to-inner rotor
clearance limitmm (in) 0.01–0.10 (0.0004–0.0039)
Rotor-to-cover clearance mm (in) 0.03–0.08 (0.001–0.003)
Thermostats
Opening temperature°C (°F) 60 (140)
Fully open temperature°C (°F) 70 (158)
Valve open lower limit mm (in) 3.0 (0.12)
Fuel pump
Discharge L (US gal,
Imp gal)/hr
@ 6,000 r/min70 (18.5, 15.4)
Pressure kPa
(kgf/cm
2, psi)49 (0.49, 7.0)
Plunger...

Page 59 62Y3A112-16
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Lower unit
Electrical
Item UnitModel
USA T50TR———
Canada T50TR———
Worldwide FT50BET FT50CEHD FT50CED FT50CET
Gear backlash
Pinion-to-forward gear mm (in) 0.12–0.45 (0.005–0.018)
Pinion-to-reverse gear mm (in) 0.71–1.11 (0.028–0.044)
Pinion shims mm 0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50
Forward gear shims mm 0.10, 0.12, 0.15, 0.18, 0.30, 0.40, 0.50
Item UnitModel
USA T50TR———
Canada T50TR———
Worldwide FT50BET FT50CEHD FT50CED FT50CET
Ignition system
Ignition timing
(engine...

Page 60 SPECSpecifications
2-1762Y3A11
Ignition control system
Oil pressure switch kPa
(kgf/cm
2, psi)50 (0.5, 7.11)
Thermoswitch (Gy/B – B)
OFF →
ON°C (°F) 76–84 (169–183)
ON →
OFF°C (°F) 63–77 (145–170)
Starter motor
Type Bendix
Output kW 1.1
Cranking time limit Second 30
Brushes
Standard length mm (in) 16.0 (0.63)
Wear limit mm (in) 12.0 (0.47)
Commutator
Standard diameter mm (in) 33.0 (1.30)
Wear limit mm (in) 31.0 (1.22)
Mica
Standard undercut mm (in) 0.8 (0.03)
Wear limit mm (in) 0.2 (0.01)
Charging...

Page 61 62Y3A112-18
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Power trim and tilt system
Trim sensor
Setting resistanceΩ
9−
11
Resistance (P – B)Ω
10–288.3
Fluid type ATF Dexron II
Brushes
Standard length mm (in) 10 (0.39)
Wear limit mm (in) 3.5 (0.14)
Commutator
Standard diameter mm (in) 22.0 (0.87)
Wear limit mm (in) 21.0 (0.83)
Mica
Standard undercut mm (in) 1.5 (0.06)Item UnitModel
USA T50TR———
Canada T50TR———
Worldwide FT50BET FT50CEHD FT50CED FT50CET
Maintenance specifications

Page 62 SPECSpecifications
2-1962Y3A11
Dimensions
Exterior

Page 63 62Y3A112-20
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Symbol UnitModel
USA——
Canada—F50TH
Worldwide F50AEHD F50AEHT
L1 mm (in) 576 (22.7)
L2 mm (in) 223 (8.8)
L3 mm (in) 753 (29.6)
L4 mm (in) 532 (20.9)
L5 (L) mm (in) 97 (3.8)
(X) mm (in)—85 (3.3)
L6 (L) mm (in) 930 (36.6) 932 (36.7)
(X) mm (in)—1,036 (40.8)
L7 mm (in) 397 (15.6) 407 (16.0)
L8 mm (in) 247 (9.7) 245 (9.6)
L9 (L) mm (in) 0.6 (0.02)
(X) mm (in)—16.8 (0.7)
L10 mm (in) 63 (2.5)
H1 (L) mm (in) 876 (34.5)
(X) mm (in)—990 (39.0)
H2 mm (in) 519 (20.4)
H3 mm (in) 175...

Page 64 SPECSpecifications
2-2162Y3A11
Exterior

Page 65 62Y3A112-22
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Symbol UnitModel
USA—F50TR T50TR
Canada—F50TR T50TR
Worldwide F50AED F50AET FT50BET
L1 mm (in) 576 (22.7)
L2 mm (in) 142 (5.6)
L3 mm (in)—
L4 mm (in) 532 (20.9) 560 (22.0)
L5 (L) mm (in) 97 (3.8)
(X) mm (in)—85 (3.3)—
L6 (L) mm (in) 930 (36.6) 932 (36.7) 990 (39.0)
(X) mm (in)—1,036 (40.8)—
L7 mm (in) 397 (15.6) 407 (16.0)
L8 mm (in) 149 (5.9) 148 (5.8)
L9 (L) mm (in) 0.6 (0.02) 0.8 (0.03)
(X) mm (in)—16.8 (0.7)—
L10 mm (in) 63 (2.5)
H1 (L) mm (in) 876 (34.5) 917 (36.1)
(X)...

Page 66 SPECSpecifications
2-2362Y3A11
Exterior
W2
W5
W1
W3
W6
L3
L7
L2
L10
H9
H5H7
H10
H8
H4
H3
H11H1L8
C1L5
L9L4 A3A2
H6 H2 L6 L1A1
S62Y2230

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							62Y3A112-18
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Power trim and tilt system
Trim sensor
Setting resistanceΩ
 9−
11
Resistance (P – B)Ω
 10–288.3
Fluid type ATF Dexron II
Brushes
Standard length mm (in) 10 (0.39)
Wear limit mm (in) 3.5 (0.14)
Commutator
Standard diameter mm (in) 22.0 (0.87)
Wear limit mm (in) 21.0 (0.83)
Mica
Standard undercut mm (in) 1.5 (0.06)Item UnitModel
USA T50TR———
Canada T50TR———
Worldwide FT50BET FT50CEHD FT50CED FT50CET
Maintenance specifications

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							SPECSpecifications
2-1962Y3A11
Dimensions
Exterior

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							62Y3A112-20
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Symbol UnitModel
USA——
Canada—F50TH
Worldwide F50AEHD F50AEHT
L1 mm (in) 576 (22.7)
L2 mm (in) 223 (8.8)
L3 mm (in) 753 (29.6)
L4 mm (in) 532 (20.9)
L5 (L) mm (in) 97 (3.8)
(X) mm (in)—85 (3.3)
L6 (L) mm (in) 930 (36.6) 932 (36.7)
(X) mm (in)—1,036 (40.8)
L7 mm (in) 397 (15.6) 407 (16.0)
L8 mm (in) 247 (9.7) 245 (9.6)
L9 (L) mm (in) 0.6 (0.02)
(X) mm (in)—16.8 (0.7)
L10 mm (in) 63 (2.5)
H1 (L) mm (in) 876 (34.5)
(X) mm (in)—990 (39.0)
H2 mm (in) 519 (20.4)
H3 mm (in) 175 (6.9)
H4 (L) mm (in) 536 (21.1)
(X) mm (in)—647 (25.5)
H5 mm (in) 732 (28.8)
H6 (L) mm (in) 685 (27.0) 711 (28.0)
(X) mm (in)—776 (30.6)
H7 mm (in) 330 (13.0) 327 (12.9)
H8 mm (in) 39 (1.5) 45 (1.8)
H9 mm (in) 738 (29.0) 733 (28.9)
H10 mm (in) 44 (1.7)
H11 (L) mm (in) 24 (0.9)
(X) mm (in)—24 (0.9)
W1 mm (in) 181 (7.1)
W2 mm (in) 124 (4.9)
W3 mm (in)—
W4 mm (in)—
W5 mm (in) 345 (13.6)
W6 mm (in) 643 (25.3)
A1 Degree 40
A2 Degree 63 65
A3 Degree 4
T1 mm (in)—
Maintenance specifications

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							SPECSpecifications
2-2162Y3A11
Exterior

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							62Y3A112-22
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Symbol UnitModel
USA—F50TR T50TR
Canada—F50TR T50TR
Worldwide F50AED F50AET FT50BET
L1 mm (in) 576 (22.7)
L2 mm (in) 142 (5.6)
L3 mm (in)—
L4 mm (in) 532 (20.9) 560 (22.0)
L5 (L) mm (in) 97 (3.8)
(X) mm (in)—85 (3.3)—
L6 (L) mm (in) 930 (36.6) 932 (36.7) 990 (39.0)
(X) mm (in)—1,036 (40.8)—
L7 mm (in) 397 (15.6) 407 (16.0)
L8 mm (in) 149 (5.9) 148 (5.8)
L9 (L) mm (in) 0.6 (0.02) 0.8 (0.03)
(X) mm (in)—16.8 (0.7)—
L10 mm (in) 63 (2.5)
H1 (L) mm (in) 876 (34.5) 917 (36.1)
(X) mm (in)—990 (39.0)—
H2 mm (in) 519 (20.4)
H3 mm (in) 175 (6.9) 191 (7.5)
H4 (L) mm (in) 536 (21.1)
(X) mm (in)—647 (25.5)—
H5 mm (in)—
H6 (L) mm (in) 685 (27.0) 711 (28.0) 749 (29.5)
(X) mm (in)—776 (30.6)—
H7 mm (in) 330 (13.0) 327 (12.9)
H8 mm (in) 0.5 (0.02) 3.5 (0.1)
H9 mm (in) 738 (29.1) 733 (28.9)
H10 mm (in) 44 (1.7)
H11 (L) mm (in) 24 (0.9) 28 (1.1)
(X) mm (in)—24 (0.9)—
W1 mm (in) 181 (7.1)
W2 mm (in)—
W3 mm (in)—
W4 mm (in)—
W5 mm (in) 345 (13.6)
W6 mm (in)—
A1 Degree 40
A2 Degree 63 65
A3 Degree 4
T1 mm (in) 560 (22.0)
Maintenance specifications

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							SPECSpecifications
2-2362Y3A11
Exterior
W2
W5
W1
W3
W6
L3
L7
L2
L10
H9
H5H7
H10
H8
H4
H3
H11H1L8
C1L5
L9L4 A3A2
H6 H2 L6 L1A1
S62Y2230

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							62Y3A112-24
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Symbol UnitModel
USA—
Canada—
Worldwide FT50CEHD
L1 mm (in) 576 (22.7)
L2 mm (in) 272 (10.7)
L3 mm (in) 797 (31.4)
L4 mm (in) 560 (22.0)
L5 (L) mm (in) 97 (3.8)
(X) mm (in)—
L6 (L) mm (in) 990 (39.0)
(X) mm (in)—
L7 mm (in) 397 (15.6)
L8 mm (in) 189 (7.4)
L9 (L) mm (in) 0.8 (0.03)
(X) mm (in)—
L10 mm (in) 63 (2.5)
H1 (L) mm (in) 917 (36.1)
(X) mm (in)—
H2 mm (in) 519 (20.4)
H3 mm (in) 191 (7.5)
H4 (L) mm (in) 536 (21.1)
(X) mm (in)—
H5 mm (in) 680 (26.8)
H6 (L) mm (in) 723 (28.5)
(X) mm (in)—
H7 mm (in) 330 (13.0)
H8 mm (in) 110 (4.3)
H9 mm (in) 738 (29.1)
H10 mm (in) 44 (1.7)
H11 (L) mm (in) 28 (1.1)
(X) mm (in)—
W1 mm (in) 181 (7.1)
W2 mm (in) 213 (8.4)
W3 mm (in) 181 (7.1)
W4 mm (in)—
W5 mm (in) 345 (13.6)
W6 mm (in) 738 (29.1)
A1 Degree 40
A2 Degree 63
A3 Degree 4
T1 mm (in)—
Maintenance specifications

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							SPECSpecifications
2-2562Y3A11
Exterior

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							62Y3A112-26
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Symbol UnitModel
USA——
Canada——
Worldwide FT50CED FT50CET
L1 mm (in) 576 (22.7)
L2 mm (in) 142 (5.6)
L3 mm (in)—
L4 mm (in) 560 (22.0)
L5 (L) mm (in) 97 (3.8)
(X) mm (in)—
L6 (L) mm (in) 990 (39.0)
(X) mm (in)—
L7 mm (in) 397 (15.6)
L8 mm (in) 149 (5.9)
L9 (L) mm (in) 0.8 (0.03)
(X) mm (in)—
L10 mm (in) 63 (2.5)
H1 (L) mm (in) 917 (36.1)
(X) mm (in)—
H2 mm (in) 519 (20.4)
H3 mm (in) 191 (7.5)
H4 (L) mm (in) 536 (21.1)
(X) mm (in)—
H5 mm (in)—
H6 (L) mm (in) 723 (28.5)
(X) mm (in)—
H7 mm (in) 330 (13.0)
H8 mm (in) 0.5 (0.02)
H9 mm (in) 738 (29.1)
H10 mm (in) 44 (1.7)
H11 (L) mm (in) 28 (1.1)
(X) mm (in)—
W1 mm (in) 181 (7.1)
W2 mm (in)—
W3 mm (in) 181 (7.1)
W4 mm (in)—
W5 mm (in) 345 (13.6)
W6 mm (in)—
A1 Degree 40
A2 Degree 63
A3 Degree 4
T1 mm (in) 560 (22.0)
Maintenance specifications

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							SPECSpecifications
2-2762Y3A11
Clamp bracket
Symbol UnitModel
USA———F50TR
Canada—F50TH—F50TR
Worldwide F50AEHD F50AEHT F50AED F50AET
B1 mm (in) 126 (5.0)
B2 mm (in) 254 (10.0)
B3 mm (in) 163.5 (6.4)
B4 mm (in) 50.8 (2.0)
B5 mm (in) 180 (7.1)
B6 mm (in) 355 (14.0)
B7 mm (in)—
B8 mm (in) 139 (5.5)
B9 mm (in) 18.5 (0.7)
C2 mm (in)—
C3 mm (in) 69 (2.7)
D1 mm (in) 13 (0.5)
D2 mm (in) 55.5 (2.2)

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