| 1. | Remove the intake air duct and air cleaner housing. |
| 2. | Disconnect the mainshaft speed sensor connector, and remove the mainshaft speed sensor. |
| 3. | Install the new O-ring (A) on the new mainshaft speed sensor (B), then install the mainshaft speed sensor in the transmission housing. |
| 4. | Check the connector for rust, dirt, or oil, then connect the connector securely. |
| 5. | Install the intake air duct and air cleaner housing. |