Power Unit; Power Unit Technical Data; Cylinder Head Assy - Yamaha Waverunner VXS VX1800 Service Manual

Power unit technical data

Power unit

Compression pressure
Minimum
Oil cooler
Water passage holding pressure
Thermostat
Valve opening temperature
Fully open temperature
Fully open stroke

Cylinder head ASSY

Cylinder head
Warpage limit
Camshaft cap inside diameter
Camshaft
Cam lobe height-intake
Limit
Cam lobe height-exhaust
Limit
Runout
Limit
Journal diameter
Journal oil clearance
Limit
Valve clearance
Valve clearance-intake (cold)
Valve clearance-exhaust (cold)
Valve
Head diameter-intake
Head diameter-exhaust
Face width-intake
Face width-exhaust
Seat contact width-intake
Limit
Seat contact width-exhaust
Limit
Margin thickness-intake
Margin thickness-exhaust
Valve stem
Diameter-intake
Limit
Diameter-exhaust
Limit
Runout limit
780 kPa (7.8 kgf/cm², 113.1 psi)
200 kPa (2.0 kgf/cm², 29.0 psi)
58 °C (136 °F)
70 °C (158 °F)
4.3 mm (0.17 in)
0.100 mm (0.0039 in)
25.000–25.021 mm (0.9843–0.9851 in)
41.330–41.430 mm (1.6272–1.6311 in)
41.230 mm (1.6232 in)
41.220–41.320 mm (1.6228–1.6268 in)
41.120 mm (1.6189 in)
0.015 mm (0.0006 in)
0.05 mm (0.0020 in)
24.960–24.980 mm (0.9827–0.9835 in)
0.020–0.061 mm (0.0008–0.0024 in)
0.08 mm (0.0032 in)
0.14–0.23 mm (0.0055–0.0091 in)
0.28–0.37 mm (0.0110–0.0146 in)
33.900–34.100 mm (1.3346–1.3425 in)
28.900–29.100 mm (1.1378–1.1457 in)
2.260–2.830 mm (0.0890–0.1114 in)
2.260–2.830 mm (0.0890–0.1114 in)
1.400–1.600 mm (0.0551–0.0630 in)
2.100 mm (0.0827 in)
1.500–1.700 mm (0.0591–0.0669 in)
2.200 mm (0.0866 in)
0.800–1.200 mm (0.0315–0.0472 in)
0.800–1.200 mm (0.0315–0.0472 in)
5.477–5.492 mm (0.2156–0.2162 in)
5.447 mm (0.2144 in)
5.464–5.479 mm (0.2151–0.2157 in)
5.434 mm (0.2139 in)
0.010 mm (0.0004 in)
2-4
Power unit technical data