Fitting Pistons Suzuki X-90 I

1. Check cylinder bore for damage, wear and taper. See CYLINDER BLOCK under «CYLINDER BLOCK ASSEMBLY»(ref-49464-S08883247042001011500000) under OVERHAUL. See «CYLINDER BLOCK»(ref-49464-S25193313892001011500000) under ENGINE SPECIFICATIONS to determine if block must be rebored.
2. Pistons are available in.0098" (.25 mm) and.0197" (.50 mm) oversizes. Check outside diameter of piston. On 1.6L engine, measure at a point.63" (16.0 mm) from bottom of skirt and at 90 degrees to pin bore. On 1.3L engine, measure at a point.91" (23.0 mm) from bottom of skirt and at 90 degrees to pin bore.
3. On all models, standard pistons are available in 2 sizes. Piston diameter is determined by numerical mark ("1" or "2") stamped on piston crown. see scheme 16
4. Cylinder bore diameter is determined by numerical mark ("1" or "2") stamped on cylinder block. Numerical marks on cylinder block, read left to right, indicate bore sizes of cylinders No. 1, 2, 3 and 4, respectively. see scheme 16
5. When installing piston into cylinder, ensure piston numerical mark matches cylinder bore numerical mark to provide correct piston-to-cylinder clearance.

Scheme 12