2001-2002 Yamaha 50HP F50Z/T50Z Ouboard 4-stroke engines service manual, Page 46Get this manual
Maintenance specifications Model Item USA Canada Worldwide Unit
F50AEHD
F50TH F50AEHT 1.47-1.49 2.49-2.51 0.30-0.50 0.03-0.07
F50TR F50TR F50AET
2nd ring Dimension Dimension End gap Side clearance Oil ring Dimension 8
mm mm mm mm mm mm mm mm
(in) (in) (in) (in) (in) (in) (in) (in)
(0.058-0.059) (0.098-0.099) (0.012-0.020) (0.001-0.003)
Dimension End gap Side clearance Camshafts Intake (A) Exhaust (A) Intake and exhaust (8) Camshaft journal diameter #1 #2,#3,#4 Camshaft journal oil clearance #1 #2,#3,#4 Maximum camshaft runout Rocker arm shafts Outside diameter Rocker arms Inside diameter Valves Valve clearance (cold) Intake Exhaust Head diameter (A) Intake Exhaust Face width (8) Intake Exhaust Seat contact width Intake Exhaust )