Triumphrat

hammer784

Hi,

I noticed that my TT (standard pipe and filter) 'pops' on the overrun, also, occasionally I get a big backfire when on the overrun that stalls the bike - it starts back up fine. Any ideas what this could be - is it running rich?

If so can adjustments be made by mechanics or is it main dealer only time?

Thanks for any info

Dave

x1wagner

What is "overrun"?

Popping/backfiring is mostly caused by air entering the exhaust and further fueling the combustion process. It's odd that way because too lean a mixture can cause backfires too. Backfires are essentially explosions in the pipe, which can and do bend valves.

The likely culprit is the exhaust donuts at the head, but if your can is loose, it can suck some air in there and pop a little. But that is pretty far back, so it'd have to be pretty loose.

__________________
The reason Santa is so jolly is because he knows where the naughty girls live.