2001-2002 Yamaha 50HP F50Z/T50Z Ouboard 4-stroke engines service manual, Page 53Get this manual
ISPEC I Item 2nd ring Dimension Dimension End gap Side clearance Oil ring Dimension Dimension End gap Side clearance
ISpecifications
Model USA Canada Worldwide Unit
T50TR T50TR FT50BET FT50CEHD FT50CED 1.47-1.49 2.49-2.51 0.30-0.50 0.03-0.07 (0.058-0.059) (0.098-0.099) (0.012-0.020) (0.001-0.003)
FT50CET
mm mm mm mm mm mm mm mm
(in) (in) (in) (in) (in) (in) (in) (in)
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)
Camshafts
Intake (A) Exhaust (A) Intake and exhaust (B) Camshaft journal diameter mm (in) mm (in) mm (in)
Camshaft journal oil clearance
mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in)