Yamaha F150B - Page 34

1-13
SPEC
Specification
Item Unit
Model
F150B FL150B
Valve lifter
Outside diameter mm (in) 32.982–32.997 (1.2985–1.2991)
Camshaft
Cam lobe height
Intake mm (in) 45.300–45.400 (1.7835–1.7874)
Exhaust mm (in) 44.350–44.450 (1.7461–1.7500)
Cam lobe width
Intake mm (in) 35.950–36.050 (1.4154–1.4193)
Exhaust mm (in) 35.950–36.050 (1.4154–1.4193)
Journal diameter mm (in) 24.960–24.980 (0.9827–0.9835)
Runout limit mm (in) 0.03 (0.0012)
Cap inside diameter mm (in) 25.000–25.021 (0.9843–0.9851)
Valve
Clearance
Intake mm (in) 0.20±0.03 (0.008±0.001)
Exhaust mm (in) 0.34±0.03 (0.013±0.001)
Seat contact width
Intake mm (in) 1.10–1.40 (0.043–0.055)
Exhaust mm (in) 1.40–1.70 (0.055–0.067)
Margin thickness
Intake mm (in) 0.70 (0.0276)
Exhaust mm (in) 1.00 (0.0394)