Yamaha F75F - Page 332

A-5
Cylinder head assembly
Model F75FEHT F75FET F100GEHT F100GET
Cylinder head
Warpage limit 0.10 mm (0.0039 in)
Journal inside diameter 37.000–37.025 mm (1.4567–1.4577 in)
Camshaft journal oil
clearance
0.057–0.102 mm (0.0022–0.0040 in)
Limit 0.137 mm (0.0054 in)
Camshaft
Cam lobe height IN 30.439–30.539 mm (1.1984–1.2023 in)
Limit 30.389 mm (1.1964 in)
Cam lobe height EX 30.397–30.497 mm (1.1967–1.2007 in)
Limit 30.347 mm (1.1948 in)
Cam lobe width IN 25.950–26.050 mm (1.0217–1.0256 in)
Cam lobe width EX 25.590–26.050 mm (1.0075–1.0256 in)
Journal diameter 36.923–36.943 mm (1.4537–1.4544 in)
Runout 0.030 mm (0.0012 in)
Valve clearance
Valve clearance IN (cold
engine)
0.15–0.25 mm (0.0059–0.0098 in)
Valve clearance EX
(cold engine)
0.25–0.35 mm (0.0098–0.0138 in)
Valve
Margin thickness IN 0.80–1.20 mm (0.0315–0.0472 in)
Margin thickness EX 1.00–1.40 mm (0.0394–0.0551 in)
Seat contact width IN 1.10–1.50 mm (0.0433–0.0591 in)
Limit 1.950 mm (0.0768 in)
Seat contact width EX 1.10–1.50 mm (0.0433–0.0591 in)
Limit 1.950 mm (0.0768 in)
Valve stem
Diameter IN 5.475–5.490 mm (0.2156–0.2161 in)
Limit 5.445 mm (0.2144 in)
Diameter EX 5.460–5.475 mm (0.2150–0.2156 in)
Limit 5.430 mm (0.2138 in)
Runout limit IN 0.01 mm (0.0004 in)
Runout limit EX 0.01 mm (0.0004 in)
Model F75FEHT F75FET F100GEHT F100GET
Valve guide
Inside diameter IN 5.504–5.522 mm (0.2167–0.2174 in)
Clearance IN 0.014–0.047 mm (0.0006–0.0019 in)
Limit 0.070 mm (0.0028 in)
Inside diameter EX 5.504–5.522 mm (0.2167–0.2174 in)
Clearance EX 0.029–0.062 mm (0.0011–0.0024 in)
Limit 0.080 mm (0.0032 in)
Installation height 16.00–16.40 mm (0.6299–0.6457 in)
Valve spring
Free length IN 40.69 mm (1.60 in)
Limit 38.66 mm (1.52 in)
Tilt limit IN 1.7 mm (0.07 in)
Free length EX 40.69 mm (1.60 in)
Limit 38.66 mm (1.52 in)
Tilt limit EX 1.7 mm (0.07 in)
Rocker arm shaft
Outside diameter IN 20.971–20.991 mm (0.8256–0.8264 in)
Outside diameter EX 20.971–20.991 mm (0.8256–0.8264 in)
Rocker arm
Inside diameter IN 21.000–21.018 mm (0.8268–0.8275 in)
Inside diameter EX 21.000–21.018 mm (0.8268–0.8275 in)
Crankcase assembly
Cylinder
Bore 81.000–81.012 mm (3.1890–3.1894 in)
Limit 81.060 mm (3.1913 in)
Piston
Diameter 80.950–80.962 mm (3.1870–3.1875 in)
Limit 80.910 mm (3.1854 in)
1st oversize diameter 81.200–81.212 mm (3.1968–3.1973 in)
Measuring point 9.5 mm (0.37 in)
Piston clearance 0.038–0.062 mm (0.0015–0.0024 in)
Limit 0.150 mm (0.0059 in)
Ring groove (Top) 1.23–1.25 mm (0.0484–0.0492 in)
Ring groove (2nd) 1.22–1.24 mm (0.0480–0.0488 in)
Ring groove (Oil) 2.51–2.53 mm (0.0988–0.0996 in)
Pin boss inside diameter 18.004–18.015 mm (0.7088–0.7093 in)
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