Yamaha Waverunner FX 160, Service Manual

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2-3
E
SPEC
MAINTENANCE SPECIFICATIONS
MAINTENANCE SPECIFICATIONS
ENGINE
Item Unit
Model
FX160 FX160 Cruiser
Cylinder head
Warpage limit mm (in) 0.1 (0.004)
Compression pressure
*1
kPa
(kgf/cm
2
, psi)
1,150 (11.5, 164)
Cylinder
Bore size mm (in) 76.000– 76.015 (2.9921– 2.9927)
Taper limit mm (in) 0.08 (0.003)
Out-of-round limit mm (in) 0.05 (0.002)
Wear limit mm (in) 76.100 (2.9961)
Camshaft
Drive system Chain drive
Intake A mm (in) 32.55 (1.281)
Exhaust A mm (in) 33.00 (1.299)
Intake and exhaust B mm (in) 25.00 (0.984)
Camshaft cap inside diameter mm (in) 24.5 (0.9646)
Camshaft journal diameter mm (in) 24.46– 24.47 (0.9630– 0.9634)
Camshaft-journal-to-camshaft-
cap clearance mm (in) 0.03– 0.06 (0.0012– 0.0024)
Maximum camshaft runout mm (in) 0.03 (0.0012)
Timing chain
Model/number of links DID SCR-0412SV/130
Tensioning system Automatic
Valves, valve seats, valve guides
Valve clearance (cold)
Intake mm (in) 0.11– 0.20 (0.0043– 0.0079)
Exhaust mm (in) 0.25– 0.34 (0.0098– 0.0134)
Valve dimensions
Valve head diameter A
Intake mm (in) 22.9– 23.1 (0.9016– 0.9094)
Exhaust mm (in) 24.4– 24.6 (0.9606– 0.9685)
Valve face width B
Intake mm (in) 1.76– 2.90 (0.0693– 0.1142)
Exhaust mm (in) 1.76– 2.90 (0.0693– 0.1142)
*1 Measuring conditions:
Ambient temperature 20 ° C (68 ° F), wide open throttle, with spark plugs removed from all
cylinders.
The figures are for reference only.