O
OZMILLE
got no answer why it altered, other than having the throttle apart, but even then, it should not have altered the screw settings...that is if they were set correctly to start with and not being held at idle by throttle cable adj. as for the back fire..maybe chk for any air leaks around the TB's and inlet manifolds. Common method is a small spray of Ennox, RP7 etc, if it sucks that in it will wanna stall down the motor.
Hey AUS
Possibly something I did when fitting HOOKED'S airbox?? Bike has been fine since day 1 with idleing, running etc, never had a problem at all.
Def something I did :rant
Does sound like an air leak though, by checking the TB/inlet manifold which bit do you mean?? Do you mean around the inlet trumps??
Cheers Pete