I've got the "Off Road Triumph Silencers", secondary air plugged, carbs drilled and I STILL have the popping on decleration-but not all the time. The dealer has looked it over and they can't find it.
My theory is this is similar to the cars of the '70's when emission controls first came in-a real half-****** effort. All sorts of wierd stuff used to happen. I had a '74 Mazda rotary pickup and sometimes you could turn it off and walk away-about 50 feet in a parking and it would backfire like crazy. SOmething like that could get you killed these days.
On the bike I try not to close the throttle completely on decel-just open enough to prevent the popping until I pull in the clutch. It does take away some of the glamor of a beautiful bike-like being out with a beautiful woman who, uh , has gastric issues at the most awkward time.
