Question about 2000 Triumph Trophy 900
My Yamaha 600 Diversion K reg twin exhausts keeps backfiring. I have just brought the bike and the 1st day it was running fine with pillions on the back. Today when going to work (fair bit of stop-starting) It started to backfire. Before it backfires it tends to be slow to accelerate. I can overcome this by over rev-ing the bike when I get the biting point when changing gears, but obviously this is not the best option.
Nice bike and an annoying issue. Backfire is unburnt fuel that then detonates.
Hopefully, it's just a plug going bad. Pull the plugs and see which one is black/wet. That will be the tell tale sign which cylinder is acting up.
I'd replace all, set the proper gap and install them and take it for a test drive.
Good luck hope this is a simple fix.
Posted on Oct 05, 2009
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Posted on Jan 02, 2017
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