2-4
E
SPEC
MAINTENANCE SPECIFICATIONS
Valve seat width C
Intake
mm (in)
0.9– 1.1 (0.0354– 0.0433)
Exhaust
mm (in)
0.9– 1.1 (0.0354– 0.0433)
Valve margin thickness D
Intake
mm (in)
0.5– 0.9 (0.0197– 0.0354)
Exhaust
mm (in)
0.5– 0.9 (0.0197– 0.0354)
Valve stem diameter
Intake
mm (in)
3.975– 3.990 (0.1565– 0.1571)
Exhaust
mm (in)
4.465– 4.480 (0.1758– 0.1764)
Valve guide inside diameter
Intake
mm (in)
4.000– 4.012 (0.1575– 0.1580)
Exhaust
mm (in)
4.500– 4.512 (0.1772– 0.1776)
Valve-stem-to-valve-guide
clearance
Intake
mm (in)
0.010– 0.037 (0.0004– 0.0015)
Exhaust
mm (in)
0.020– 0.047 (0.0008– 0.0019)
Valve stem runout
mm (in)
0.01 (0.0004)
Valve spring
Free length
Intake
mm (in)
38.90 (1.53)
Exhaust
mm (in)
40.67 (1.60)
Installed length
Intake
mm (in)
34.50 (1.36)
Exhaust
mm (in)
35.00 (1.38)
Spring limit
Intake
Degree/mm (in)
2.5/1.7 (0.067)
Exhaust
Degree/mm (in)
2.5/1.8 (0.071)
Piston
Piston-to-cylinder clearance
mm (in)
0.10– 0.11 (0.0039– 0.0043)
Piston diameter
mm (in)
75.895– 75.910 (2.9880– 2.9886)
Measuring point H*
mm (in)
5 (0.2)
Wear limit
mm (in)
0.17 (0.0067)
Piston pin boss inside diameter
mm (in)
17.002– 17.013 (0.6693– 0.6698)
Piston pins
Outside diameter
mm (in)
16.991– 17.000 (0.6689– 0.6693)
Wear limit
mm (in)
16.98 (0.67)
Item
Unit
Model
FX160
FX160 Cruiser
Summary of Contents for Waverunner FX 160
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