1999 - 2023
YAMAHA YZ 250
Big bore piston kit
| Vertex
Fits to:
YAMAHA YZ 250 [1999 - 2023]
Specifications
| Manufacturer | Vertex |
|---|---|
| Compression ratio | STD |
| Cylinder diameter (mm) | 72 |
| Displacement (cc) | 295 |
| Piston diameter | 71.94 mm |
| Size over standard (mm) | 5.6 |
| Compression ratio | STD |
| Cylinder diameter (mm) | 72 |
| Displacement (cc) | 295 |
| Size over standard (mm) | 5.6 |
| Piston diameter | 71.95 mm |
Variant description
+5.6mm Cast Big Bore Piston Kit. 72mm. 295cc. Includes (Piston, Rings, Wrist Pin, Circlips). Shorter wrist pin to crown height for big bore cylinder. *Must modify cylinder bore, cylinder head surface and cylinder head.
Variant description
+5.6mm Cast Big Bore Piston Kit. 72mm. 295cc. Includes (Piston, Ring Set, Wrist Pin, Circlips).