Model Name F90TR Mercury Marine Outboard Service Manual, Mariner Outboard Repair Manual, Owner's Shop Manual, Workshop Manual, Handbook, Book, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1990, 1989, 1988, 1987, 1986, 1985, 1984, 1983, 1982,1981, 1980, 1979, 1978, 1977, 1976, 1975.
Replace every 200 hours (12 months).
A B (C.25 mm) A : Correct thickness of shim for proper tappet clearance (mm) epson stylus sx400 scan software B : Thickness of original shim (mm) C : Original tappet clearance (mm).
Measure and record the intake valve clearance for cylinders #1 and #2.Remove breather hose 1 and evaporation hose 2 from cylinder head cover.(3) Pull up emergency stop switch knob 2 three times in seven seconds.Installation After checking and adjusting all tappet clearances, install cylinder head cover.OIL pressure Oil pressure (at normal operating temp.When replacing engine oil filter, change engine oil at the same time.Yamaha Outboard Engine 100 hp V4 (1730cc) 2-stroke.(4) Turn ignition key to OFF position, then set emergency stop switch plate 1 in original position.Two minutes, then recheck engine oil level.After warming up, shift into forward gear and increase engine speed to 3000 r/min.0.23.27 mm (0.009.011.) This is a left hand (LH) rotation powerhead.Propeller / NUT / cotter PIN Inspect initially after 20 hours (1 month) and every 100 hours (6 months).Yamaha Outboard Engine 80 hp 3 cyl.Standard spark plug : NGK BKR6E carbon deposit Inspect for a carbon deposit on spark plug bases.Remove flywheel cover and spark plug cover.Battery solution gravity check Measure gravity of battery solution using hydrometer.