Bombardier SeaDoo 1997 factory shop manual, Page 57Get this manual
Section 03 ENGINE Sub-Section 05 (TOP END)
Clean piston ring grooves with groove cleaner tool, or piece of broken ring
INSPECTION
787 Engine Check RAVE valve bellow no23 for cracksCheck if passages of valve housing no27 and cylinder no9 are not obstructed
ENGINE MEASUREMENT Cylinder Taper Cylinder Out of Round PistonCylinder Wall Clearance for 717 Engines PistonCylinder Wall Clearance for the 787 Engine RingPiston Groove Clearance Ring End Gap
N.A Not Applicable
TOLERANCES NEW PARTS (min (max N.AN.A0.06 mm (.0024 in) 0.10 mm (.004 in) 0.03 mm (.001 in) 0.25 mm (.010 in) 0.05 mm (.002 in) 0.008 mm (.0003 in) 0.11 mm (.004 in) 0.12 mm (.005 in) 0.07 mm (.003 in) 0.40 mm (.016 in) WEAR LIMIT 0.1 mm (.004 in) 0.08 mm (.003 in) 0.20 mm (.008 in) 0.20 mm (.008 in) 0.20 mm (.008 in) 1.0 mm (.039 in)