19mm carbs ahhhhh

[smokeyyy]

hello there any of u guys fitted a 19mm carb and had nothing but loads of smoke and only revving to 3900 sounds like over fueling done the usual float height main jet.set the mixture screw roughly to where another 1 fitted to a m8's bike is.bike run like a dream before fitting had a 14/14 so i know fuel is also correct.
any advice cheers.

[V.man - Moderator]

Sounds like you need to get a selection of different jets and try them all .

Take out your spark plug, what colour is it