Kawasaki STX-15F Jet Ski User Manual


 
ENGINE TOP END 6-7
Specifications
Item Standard Service Limit
Inlet (Outer) 45.78 mm (1.802 in.) 44.2 mm (1.740 in.)
Cylinder, Piston
Cylinder Inside Diameter 82.994 83.006 mm (3.2675 3.2679 in.) 83.10 mm (3.272 in.)
Piston Diameter
82.919 82.934 mm (3.2645 3.2651 in.) 82.77 mm (3.259 in.)
Piston/cylinder Clearance 0.060 0.087 mm (0.0024 0.0034 in.) –––
Piston Ring/groove
Clearance:
Top 0.03 0.07 mm (0.0012 0.0028 in.) 0.17 mm (0.0067 in.)
Second 0.02 0.06 mm (0.0008 0.0024 in.) 0.16 mm (0.0063 in.)
Piston Ring Groove Width:
Top
0.92 0.94 mm (0.0362 0.0370 in.) 1.02 mm (0.0402 in.)
Second 1.01 1.03 mm (0.0398 0.0406 in.) 1.11 mm (0.0437 in.)
Piston Ring Thickness:
Top 0.87 0.89 mm (0.0343 0.0350 in.) 0.80 mm (0.0315 in.)
Second 0.97 0.99 mm (0.0382 0.0390 in.) 0.90 mm (0.0354 in.)
Piston Ring End Gap:
Top
0.25 0.40 mm (0.0098 0.0157 in.) 0.7 mm (0.0276 in.)
Second 0.40 0.55 mm (0.0157 0.0217 in.) 0.8 mm (0.0315 in.)
Valve Head Thickness
Valve Head Thickness [A]
Valve Stem Diameter [B]
45° [C]
Valve Stem Bend