2004 Skidoo ZX Series Service Manual, Page 542Get this manual
Section 13 TECHNICAL DATA Subsection 02 (ENGINES)
Skandic Sport 550 and Summit 550 F
Country Engine Type ENGINE
Number of cylinder Bore Stroke Displacement Compression ratio Maximum power engine speed (1) Piston ring type 1st 2nd New Wear limit New Wear limit New Wear limit
Skandic Sport 550 CANU.S550 CANU.S552
Summit 550 EUROPE
2 Standard mm (in) mm (in) cm3 (in 3) 76 (2.992) 61.00 (2.402) 553.40 (33.771) 9.6 0.5 6950 100 RPM Semi-trapezoidal Rectangular mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) 0.40 to 0.55 (.016 to .022) 1.0 (.039) 0.04 to 0.08 (.0016 to .0030) 0.2 (.0079) 0.147 0.026 (.0058 .0010) 0.2 (.0079) 0.3 (.012) 0.06 (.0024) 0.200 to 0.527 (.0079 to .0207) 1.2 (.0472)