Back firing Drag Star 650

[chas1954]

The problem I have got on my drag star 650 deceleration it starts to backfire.Any help would be appreciated. Chas

[blackhat250]

Hi chas " its caused by unburnt fuel igniting in the exhaust, have you removed the baffle"s,, as this effects back presure,

[chas1954]

Thanks for that.I have got Jardine exhaust fitted.

[Ttaskmaster]

Holes.

[chas1954]

on holes

[Toutsuite]

loud pipes = loud popping. You could try quiet baffles, or enriching your mixture (re-jetting).