Originally Posted by Carbster
Ordered the needle shown above. I just ordered a 790 kit today, hoping to do a dyno pass before with this needle and then after the big jug install. Ive never done any extensive tune work past mxrobs standard jetting recommendations. I might have gone up a main jet size to try and compensate for removing the 2 brothers buttplug. Dear Lord its louder than shit now!
Mistake! Need the larger of the three sizes of tips available or buttplugs as my pals call em
Ill try and post up some dyno sheets this spring if I can find this thread again.
Be interesting if someone from NA tried the NCVT in a 650. Down under, NA jetting specs are always too rich. We always assumed different fuel specs, but based on Phreaky Phil's experience, maybe not?
There is a 790 build thread that might be of interest here:
Make sure you gap your rings