Yamaha F50A Service Manual page 56

SPEC
Item
2nd ring
Dimension B
Dimension T
End gap
Side clearance
Oil ring
Dimension B
Dimension T
End gap
Side clearance
Camshafts
Intake (A)
Exhaust (A)
Intake and
exhaust (B)
Camshaft journal diameter
#1
#2, #3, #4
Camshaft journal oil clearance
#1
#2, #3, #4
Maximum camshaft runout
Rocker arm shafts
Outside diameter
Rocker arms
Inside diameter
Valves
Valve clearance (cold)
Intake
Exhaust
Head diameter (A)
Intake
Exhaust
Face width (B)
Intake
Exhaust
Seat contact width (C)
Intake
Exhaust
2-13
Specifications
USA
Unit
Canada
Worldwide
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
Model
T50TR —
T50TR —
FT50BET FT50CEHD FT50CED FT50CET
1.47–1.49 (0.058–0.059)
2.49–2.51 (0.098–0.099)
0.30–0.50 (0.012–0.020)
0.03–0.07 (0.001–0.003)
2.34–2.46 (0.092–0.097)
2.75 (0.108)
0.20–0.70 (0.008–0.028)
0.05–0.19 (0.002–0.008)
30.89–30.99 (1.2161–1.2200)
30.82–30.92 (1.2135–1.2175)
25.95–26.05 (1.0217–1.0256)
36.93–36.94 (1.4539–1.4543)
36.94–36.95 (1.4543–1.4547)
0.055–0.100 (0.0022–0.0039)
0.045–0.090 (0.0018–0.0035)
0.04 (0.0016)
15.98–15.99 (0.6291–0.6295)
16.00–16.01 (0.6299–0.6303)
0.20 ± 0.05 (0.008 ± 0.002)
0.30 ± 0.05 (0.012 ± 0.002)
29.9–30.1 (1.177–1.185)
25.9–26.1 (1.020–1.027)
1.84–2.97 (0.072–0.117)
1.98–3.11 (0.078–0.122)
0.9–1.1 (0.035–0.043)
0.9–1.1 (0.035–0.043)
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