Crankcase Assy - Yamaha Waverunner VXS VX1800 Service Manual

Valve guide
Inside diameter-intake
Inside diameter-exhaust
Stem to guide clearance-intake
Limit
Stem to guide clearance-exhaust
Limit
Valve guide installation height
Valve spring
Free length-intake
Free length-exhaust
Limit
Installed length-intake (valve closed)
Installed length-exhaust (valve closed)
Tilt limit-intake
Tilt limit-exhaust

Crankcase ASSY

Cylinder
Bore size
Limit
Taper limit
Out of round limit
Piston
Diameter
Measuring point
Piston clearance
Limit
Ring groove (Top ring)
Ring groove (2nd ring)
Ring groove (Oil ring)
Pin boss bore diameter
Limit
Piston pin
Outside diameter
Limit
Piston ring
End gap measuring point
Top ring
Type
Height (B)
Width (T)
End gap (installed)
Limit
Side clearance
Limit
5.504–5.522 mm (0.2167–0.2174 in)
5.504–5.522 mm (0.2167–0.2174 in)
0.012–0.045 mm (0.0005–0.0018 in)
0.080 mm (0.0032 in)
0.025–0.058 mm (0.0010–0.0023 in)
0.100 mm (0.0039 in)
12.3–12.7 mm (0.48–0.50 in)
45.58 mm (1.79 in)
45.58 mm (1.79 in)
43.30 mm (1.70 in)
34.0 mm (1.34 in)
34.0 mm (1.34 in)
2.5°/2.0 mm
2.5°/2.0 mm
86.000–86.015 mm (3.3858–3.3864 in)
86.100 mm (3.3898 in)
0.080 mm (0.0032 in)
0.050 mm (0.0020 in)
85.915–85.930 mm (3.3825–3.3831 in)
9.5 mm (0.37 in)
0.080–0.090 mm (0.0032–0.0035 in)
0.200 mm (0.0079 in)
1.210–1.230 mm (0.0476–0.0484 in)
1.210–1.230 mm (0.0476–0.0484 in)
2.510–2.530 mm (0.0988–0.0996 in)
22.004–22.015 mm (0.8663–0.8667 in)
22.045 mm (0.8679 in)
21.991–22.000 mm (0.8658–0.8661 in)
21.981 mm (0.8654 in)
6.0 mm (0.24 in)
Barrel
1.170–1.190 mm (0.0461–0.0469 in)
2.850–3.050 mm (0.1122–0.1201 in)
0.300–0.450 mm (0.0118–0.0177 in)
0.700 mm (0.0276 in)
0.020–0.060 mm (0.0008–0.0024 in)
0.110 mm (0.0043 in)
2-5
Power unit technical data