Valve, Intake/Exhaust
Valve and Spring| Plate dia. Intake | mm | 33.0 |
| Plate dia. Exhaust | mm | 30.5 |
| Intake stem dia. | mm | 6.0 (-0.025 / -0.040) |
| Ex. stem dia. | mm | 6.0 (-0.025 / -0.055) |
| Repair valves in STD. and oversizes are avail. | -- | -- |
| Shaft dia. Intake, Stage 1 | mm | 6.1 (-0.025 / -0.040) |
| Shaft dia. Ex., Stage 1 | mm | 6.1 (-0.025 / -0.055) |
| Head dia. | mm | 0.2 |
| Identification on stem | -- | R1 |
| Shaft dia. Intake, Stage 2 | mm | 6.2 (-0.025 / -0.040) |
| Shaft dia. Exhaust, Stage 2 | mm | 6.2 (-0.025 / -0.055) |
| Head dia. | mm | 0.4 |
| Identification on stem | -- | R2 |