Fitting Pistons
- Check piston-to-bore clearance. See PISTONS, PINS & RINGS table under ENGINE SPECIFICATIONS. Standard size pistons are color-coded Red, Blue or Yellow on the piston dome. Oversize pistons are also available.
- If bore diameter is in lower one-third of specification, use a Red coded piston. If bore diameter is in middle one-third of specification, use a Blue coded piston. If bore diameter is in upper one-third of specification, use Yellow coded piston. Use proper size piston to obtain specified clearance. See PISTON SELECTION table.
PISTON SELECTION
| Cylinder Bore Diameter In. (mm) | Piston Color Code |
|---|---|
| 3.5043-3.5053 (89.009-89.035) | Red |
| 3.5053-3.5063 (89.035-89.060) | Blue |
| 3.5063-3.5073 (89.060-89.085) | Yellow |