It's been a busy winter and I haven't gotten as much done in the garage as I'd hoped, but breaks in the gloom are beginning to appear so I spent the weekend getting the Tiger sorted and giving plastic welding my first go.
2003 Triumph Tiger 955i Fuel Injector Maintenance
The old Tiger is up at about 90k on the odometer. I did a deep maintenance a couple of winters back (swing arm out, everything gone over from the wheels up) and that seemed to solve most issues, except the fuel injection. These early electronic
fuel injection systems in 955i Triumphs is touchy. What I've found that worked is to pull the injectors each winter and deep clean them in the ultrasonic bath, so that's what last weekend was.
 |
| Injectors out! I put the end without the electrical connector into the ultrasonic cleaner and give it 10 minutes at 60°C. Once out I clean them up and back in they go. No hesitation or idling problems since. |
 |
| That vacuum run stepper motor (upper left) is what manages the idle control system - it's touchy! Make sure you've got good vacuum hoses (the black ribbed ones in the pic) and the gasket for the stepper motor is in good shape, or you'll be stalling... a lot. I'm sorting a threaded holder for the fuel injectors here. |
 |
| Tank off gave me a chance to sort out the airbox, which I now seal with gasket material. At almost 90k, maintenance takes on jobs like rethreading bolts and gasketing tired airboxes to keep everything tight. |
 |
| Found a stowaway on the airbox under the gas tank. Probably good luck? |
 |
| Tiger is back together again and ready to take a run at 100k in it's 20th season. |
How well did it work? We had a break in the polar vortex (it was -30° last week). In 5°C we went for a blast up and down the nearby river roads and it felt sharp. Doing that bit extra with an older high mileage bike when it comes to maintenance is the key to a happy riding season.
