Valve Spring: Specifications
| Valve spring free length | Inner | Standard | 36.08 mm |
| Limit | 35.00 mm | ||
| Outer | Standard | 40.44 mm | |
| Limit | 39.22 mm | ||
| Valve spring preload | Inner | Standard | 6.9 - 7.9 kg for 27.5 mm |
| Limit | 6.2 kg for 27.5 mm | ||
| Outer | Standard | 15.4 - 17.8 kg for 31.7 mm | |
| Limit | 13.8 kg for 31.7 mm | ||
| Valve spring squareness | Limit | 2.0 mm |