2005 Ski-Doo REV Series Shop Manual, Page 468Get this manual
Section 12 TECHNICAL DATA Subsection 01 (FAN COOLED MODELS)
FAN COOLED MODELS
MODEL ENGINE Engine type Number of cylinder Bore Stroke Displacement Compression ratio Maximum power engine speed (1) Piston ring type New Wear limit New Wear limit New Wear limit New Wear limit New Wear limit 100 RPM 1st 2nd mm (in) mm (in) Standard mm (in) mm (in) cm3 (in3) 368.30 (22.475) 11.2 0.5 7000 Semi-trapezoidal Rectangular 0.20 to 0.35 (.008 to .0138) 0.40 to 0.55 (.016 to .022) 62 (2.441) 61.00 (2.402) 553.40 (33.771) 9.6 0.5 377 76 (2.992) 552 GSXGTXMX 380 EXPEDITIONSUMMIT GSXGTXMX 550 F
Ring end gap
1.0 (.039) 0.04 to 0.08 (.0016 to .0030)
Ringpiston groove clearance
mm (in) 0.040 to 0.110 (.0016 to .0043) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in)