Warning! Observe the warning advice given in the General Information section on the safe handling of fuel and fuel containers. A fire, causing personal injury and damage to property could result from spilled fuel or fuel not handled or stored correctly.
Fuel pressure is checked using T3880001 - Fuel Pressure Gauge.
![](https://motoinstruction.ru/img/triumph/15/121452.jpg)
T3880001 - Fuel Pressure Gauge
1. Remove the fuel tank (see Fuel tank - removal) and place on a suitable support, close to the motorcycle.
2. Using the T3880123 - Extension Cable, carefully connect the fuel pump connection on the main harness to the fuel tank.
3. Select the fuel pressure gauge adapter marked B from T3880001 - Fuel Pressure Gauge.
Warning! Always use the correct fuel pressure gauge adapter. Use of an incorrect adapter will result in a fuel leak. A fuel leak can result in a fire causing damage to property and injury to persons.
4. Connect the adapter hose to the fuel pump plate outlet as shown in the illustration below.
![](https://motoinstruction.ru/img/triumph/15/121453.jpg)
1. Adaptor hose B; 2. Fuel pump plate outlet; 3. T3880123 - Extension Cable
5. Connect the fuel hose to the adaptor hose as shown in the illustration below.
![](https://motoinstruction.ru/img/triumph/15/121454.jpg)
1. Motorcycle fuel hose; 2. Adaptor hose B; 3. Fuel pump connection; 4. T3880123 - Extension Cable; 5. Fuel pump connection; 6. Fuel pump plate outlet
6. Connect the fuel pressure gauge to the adaptor hose as shown below by pushing the gauge spigot into the adapter until a click can be heard.
![](https://motoinstruction.ru/img/triumph/15/121455.jpg)
1. Adaptor hose; 2. Fuel pressure gauge
Note: To release the fuel pressure gauge from the adapter, slide the outer ferrule downwards. This will allow the gauge to spring upwards from the adapter.
7. Ensure the gauge is visible to the side of the motorcycle.
8. Temporarily reconnect the battery, positive (red) lead first and tighten the terminals to 4.5 Nm.
9. Start the engine and observe the fuel pressure reading on the gauge.
Note: The fuel pressure should be 3.5 bar nominally.
10. When fuel pressure checking is complete, disconnect the battery, negative (black) lead first.
11. Disconnect the fuel pressure gauge adapter and wiring extension.
Perform the following operations: