Yamaha F2.5C, Руководство по обслуживанию

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SPEC
Specifications
2-5
6D55F11
Valves
Valve clearance (cold)
Intake mm (in) 0.15–0.25 (0.006–0.010)
Exhaust mm (in) 0.25–0.35 (0.010–0.014)
Head diameter (A)
Intake mm (in) 31.90–32.10 (1.256–1.264)
Exhaust mm (in) 25.90–26.10 (1.020–1.028)
Face width (B)
Intake mm (in) 1.84–2.97 (0.072–0.117)
Exhaust mm (in) 1.98–3.11 (0.078–0.122)
Seat contact width (C)
Intake and exhaust mm (in) 0.9–1.1 (0.035–0.043)
Margin thickness (D)
Intake mm (in) 0.8 (0.0315)
Exhaust mm (in) 0.9 (0.0354)
Stem diameter
Intake mm (in) 5.475–5.490 (0.2156–0.2161)
Exhaust mm (in) 5.460–5.475 (0.2150–0.2156)
Guide inside diameter
Intake and exhaust mm (in) 5.500–5.512 (0.2165–0.2170)
Stem-to-guide clearance
Intake and exhaust mm (in) 0.025–0.052 (0.0010–0.0020)
Stem runout limit mm (in) 0.03 (0.0012)
Valve springs
Free length mm (in) 39.85 (1.5689)
Minimum free length mm (in) 25.80 (1.0157)
Tilt limit mm (in) 1.7 (0.07)
Connecting rods
Small-end inside diameter mm (in) 15.985–15.998 (0.6293–0.6298)
Big-end inside diameter mm (in) 36.000–36.024 (1.4173–1.4183)
Crankpin oil clearance mm (in) 0.020–0.052 (0.0008–0.0020)
Big-end bearing thickness
A Blue mm (in) 1.494–1.498 (0.0588–0.0590)
B Black mm (in) 1.490–1.494 (0.0587–0.0588)
C Brown mm (in) 1.486–1.490 (0.0585–0.0587)
Crankshaft
Crankshaft journal diameter mm (in) 42.984–43.000 (1.6923–1.6929)
Crankpin diameter mm (in) 32.984–33.000 (1.2986–1.2992)
Crankpin width mm (in) 21.000–21.070 (0.8268–0.8295)
Runout limit mm (in) 0.05 (0.0020)
Item Unit
Model
F25CMH F25CM