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Old 05-21-2013, 06:04 PM
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biknut biknut is offline
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Join Date: Sep 2010
Location: Dallas
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Default Re: carburator tuning

Originally Posted by survive1990 View Post
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.
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