Originally Posted by survive1990
whats the difference between the speed and the nt ?? i have a cns and i hate it!! i cant adjust the needle its runing rich which should i get.. im thinking the nt??
Your bike will run great with either an NT or a Speed carb. Both carbs use the same jets and throttle cable.
A speed carb is about 2mm bigger than a NT. I suspect an NT gives a little better gas milage. A speed carb seems to have a better idle. That's mainly why I like it. Power wise there's not much difference between the two, at least with pretty stock motors.
A speed carb has a built in petcock which some people have had trouble with. I never use the one on my carb, and just keep an eye on the banjo bolt to make sure it's always tight.
I also like to use a shorty intake manifold with these carbs, because of the oring, but it's not really necessary.