Triumph Thunderbird Fuel System problems by year

This happens when shutting the throttle off to make a corner or a stop light, or to adjust speed in traffic. The engine backfires through the intake of the throttle bodies and the airbox under the vehicle seat and dies. There is no warning this is about to happen and the engines dies and you are stranded in traffic while you coast to a stop, find neutral and the engine usually starts as nothing has happened and runs normally until the next time. *Tr

While traveling down a long steep incline at approximately 40 mph,and down shifting to slow the motorcycle,the motor stack fired thru the throttle bodies and quit for no apparent reason. As luck had it,there was no traffic on the road at the time. However,if I had to accelerate at that instant to avoid another vehicle,it would have created a tense situation to say the least. When I got close enough to the bottom of the hill,i let the clutch out to restart the motor while the machine was still moving and was...

While driving down long steady hills with closed or partial throttle, the engine backfires, stalls, and would no longer respond to the throttle. In two cases, the engine would restart after turning the ignition off and back on while still moving. In another instance, repeated attempts had to be made to get the engine restarted, after coasting to a stop on the side of the road. *Tr