Valve Arrangement
- Left Side - Intake and jet valves.
- Right Side - Exhaust valves.NOTE: Jet valve clearance adjustment must be made before intake valve is adjusted. Readjust after cylinder head is retightened.
- Warm-up engine to normal operating temperature. Remove valve cover and position cylinder No. 1 at TDC of compression stroke to adjust clearances marked "A" on intake valve side. See Fig 1.
- Jet valve spring is comparatively weak and must not be forced in when making adjustment. Adjust intake valve clearance.
- Position cylinder No. 4 at TDC of compression stroke to adjust clearances marked "B" on intake valve side. Adjust by repeating steps 1) and 2).
VALVE CLEARANCE SPECIFICATIONS
| Application | Cold In. (mm) | Hot In. (mm) |
|---|---|---|
| Intake | .003 (.07) | .006 (.15) |
| Exhaust | .007 (.17) | .010 (.25) |
| Jet Valve | .007 (.17) | .010 (.25) |