Yamaha F15A - Maintenance Specifications (F15 A); Power Unit

SPEC
MAINTENANCE SPECIFICATIONS (F15A)
2-3
E
MAINTENANCE SPECIFICATIONS (F15A)
POWER UNIT
Model
Item Unit
F15AMH F15AEH F15AE
F15MHX F15EHX —
CYLINDER HEAD
Warpage limit mm (in) 0.1 (0.004)
CYLINDER
Bore mm (in) 59.00 ~ 59.02 (2.323 ~ 2.324)
Taper limit mm (in) 0.08 (0.003)
Out-of-round limit mm (in) 0.05 (0.002)
Cylinder block inside diameter mm (in) A : Blue 38.033 ~ 38.040 (1.4974 ~ 1.4976)
B : Black 38.025 ~ 38.032 (1.4970 ~ 1.4973)
C : Brown 38.016 ~ 38.024 (1.4967 ~ 1.4970)
CAMSHAFT
Intake (A) mm (in) 23.895 ~ 23.995 (0.9407 ~ 0.9447)
Exhaust (A) mm (in) 23.917 ~ 24.017 (0.9416 ~ 0.9456)
Intake (B) mm (in) 19.950 ~ 20.050 (0.7854 ~ 0.7894)
Exhaust (B) mm (in) 19.950 ~ 20.050 (0.7854 ~ 0.7894)
Camshaft journal diameter mm (in) 15.973 ~ 15.984 (0.6289 ~ 0.6293)
mm (in) 17.975 ~ 17.991 (0.7077 ~ 0.7088)
Oil pump housing journal diameter mm (in) 16.000 ~ 16.0188 (0.6299 ~ 0.63066)
Cylinder head journal diameter mm (in) 18.000 ~ 18.018 (0.7087 ~ 0.7094)
Camshaft round limit mm (in) 0.03 (0.001)
TIMING BELT
Slack mm (in) 0 ~ 10 (0 ~ 0.4)
ROCKER ARM SHAFT
Outside diameter mm (in) 12.941 ~ 12.951 (0.5095 ~ 0.5099)
ROCKER ARM
Inside diameter mm (in) 13.000 ~ 13.018 (0.5118 ~ 0.5125)
VALVES
Face angle Degree 90.5 ~ 91.5
Valve clearance (cold)
Intake mm (in) 0.20 ± 0.05 (0.008 ~ 0.002)
Exhaust mm (in) 0.25 ± 0.05 (0.010 ~ 0.002)
Head diameter (A)
Intake mm (in) 27.9 ~ 28.1 (1.10 ~ 1.11)
Exhaust mm (in) 21.9 ~ 22.1 (0.86 ~ 0.87)
Face width (B)
Intake mm (in) 2.0 ~ 3.1 (0.079 ~ 0.122)
Exhaust mm (in) 2.0~3.1 (0.079 ~ 0.122)
World-
wide
USA/
CANADA