I've got a 2009 Triumph Speedmaster that started having problems with intermittent no-start situations a year after I got it (while still under warranty mind you). For no apparent reason, the bike just stalls and won't start again; though the lights work, the ignition switch is totally dead. It's been in the shop now since May. The most recent time it didn't start—after being stored all winter—I took it out to change the oil, and....OMG, it started up on the first try! Then the bike stalled, started up again, ran for about 20 seconds, then stalled again. Like I say, the lights and instrument panel are lit, but the ignition switch is unresponsive. So I had it towed to the shop, where it started right up for them. The shop has tested all the obvious gremlins—battery, ignition, swapped out the ECU with another bike—yet it could not duplicate the no-start situation. Triumph is digging in its heels and wants the dealer to duplicate the no-start scenario before they send a new ECU. So the dealer will swap my ECU into another bike and run a new one in my bike, but if it's not the ECU, the next step would be wiring harness. Any suggestions or insights into intermittent electrical gremlins?!
West Boylston, MA