| 1. Disconnect the negative battery terminal. |
| 2. Remove the bottom guard of the engine. |
| 3. Lock the crankshaft pulley bolt and unscrew. |
 | 4. Remove the crankshaft pulley. |
| 5. Remove the gas distribution belt and crankshaft sprocket. |
| 6. Remove the crankshaft sensor. |
 | 7. Remember the planting depth gland and remove it with a special tool or screwdriver. |
| 8. Clean the oil seal groove and lubricate the new oil seal with engine oil. |
 | 9. Install the oil seal into place. |
| 10. Establish the remained details, get the engine and check for leaks. |
