Yamaha F80B Service Manual page 19

Item
Oil ring
Dimension B
(*)
Dimension T
End gap
Side clearance
Camshafts
Intake (A)
Exhaust (A)
Intake (B)
Exhaust (B)
Camshaft journal diameter
Camshaft runout limit
Valves
Valve clearance (cold)
Intake
Exhaust
Head diameter (A)
Intake
Exhaust
Face width (B)
Intake
Exhaust
Seat contact width (C)
Intake
Exhaust
Margin thickness (D)
Intake
Exhaust
Stem diameter
Intake
Exhaust
Guide inside diameter
Intake and exhaust
Stem-to-guide clearance
Intake
Exhaust
Stem runout limit
Valve springs
Free length
Tilt limit
(*)
The figure is for reference only.
6D93G11
Unit
F80BET
mm (in) 2.38–2.48 (0.0937–0.0976)
mm (in)
mm (in) 0.20–0.70 (0.0079–0.0276)
mm (in) 0.03–0.15 (0.0012–0.0059)
mm (in) 36.48–36.58 (1.4362–1.4402)
mm (in) 36.90–37.06 (1.4528–1.4591)
mm (in) 29.95–30.05 (1.1791–1.1831)
mm (in) 29.92–30.08 (1.1780–1.1842)
mm (in) 24.960–24.980 (0.9827–0.9835)
mm (in)
0.20 ± 0.03 (0.008 ± 0.001)
mm (in)
0.34 ± 0.03 (0.013 ± 0.001)
mm (in)
mm (in)
mm (in)
mm (in) 1.99–2.44 (0.0783–0.0961)
mm (in) 2.27–2.72 (0.0894–0.1071)
mm (in) 1.20–1.60 (0.0472–0.0630)
mm (in) 1.20–1.60 (0.0472–0.0630)
mm (in) 0.80–1.20 (0.0315–0.0472)
mm (in) 1.00–1.40 (0.0394–0.0551)
mm (in) 5.975–5.990 (0.2352–0.2358)
mm (in) 5.960–5.975 (0.2346–0.2352)
mm (in) 6.000–6.018 (0.2362–0.2369)
mm (in) 0.010–0.043 (0.0004–0.0017)
mm (in) 0.025–0.058 (0.0010–0.0023)
mm (in)
mm (in)
mm (in)
Maintenance specification
Model
F100DET
2.40 (0.0945)
0.03 (0.0012)
29.0–29.2 (1.14–1.15)
24.0–24.2 (0.94–0.95)
0.01 (0.0004)
53.20 (2.0945)
2.6 (0.10)
1
2
3
4
5
6
7
8
9
2-4