Lubricate valve stem with oil.
Use fine-grained grinding paste ensure even distribution around valve head lift valve up rhythmically from seat.
Inspect
Valve and seat for correct contact width over entire circumference.
| Valve | Standard mm | Limit (mm) |
|---|---|---|
| Intake | 1.7 | 2.2 |
| Exhaust | 2.0 | 2.5 |
Clean
Valves and cylinder head.
