Removal
1. Remove the rider's seat as described on page 17.9.
2. Disconnect the battery negative (black) lead first.
3. Remove the engine infill panel from the left hand side of the engine (see page 17.10).
Note: Behind the engine infill panel, secured by the same fixings as the panel, is a connector support bracket. The gear position sensor plug is located here.
4. Release the two screws securing the sensor to the rear of the engine, on the left hand side.
![](https://motoinstruction.ru/img/triumph/7/114490.jpg)
1. Gear position sensor
5. Ease the connector rearwards to detach it from the engine. Recover and discard the О-ring that seals the sensor to the engine.
Note: Make a note of the sensor's wiring run in order to return it to the same routing on assembly.
6. Trace the connector wiring back to the connector. Disconnect the sensor and detach it from the motorcycle.
Installation
1. Fit a new О-ring to the sensor. Lubricate the Oring with a smear of petroleum jelly.
2. Position the sensor to the engine and route the wiring as noted prior to removal.
3. Retain the sensor with the two screws, tightening them to 9 Nm.
4. Connect the sensor to the main wiring harness. Reattach the connector to the bracket.
5. Position the left hand engine infill panel to the frame. Align the screw holes in the panel with those in the connector bracket and frame. Fit and tighten the screws to 3 Nm.
6. Reconnect the battery, positive (red) lead first.
7. Refit the rider's seat as described on page 17.9.