What is your carb setup?

[remainincognito]

I have a pamco igniton with vm36 roundslide carbs. I have 150 mains with 25 pilots and needle jet 159 p8.

Bike is sputtering at bottom and low to mid and hard to move.

 

[DetroitMuscle07]

I currenty have 27.5 pilots/200 mains/needle 2nd position on my 750cc with vm34's and a 2into1 exhaust.

 

[remainincognito]

Replaced the 150 mains with 190.....still having a problem with bike just off idle. No power fro just of idol to mid then it hits. Any ideas?

 

[5twins]

The P8 needle jet may be too rich. I think most run a P5 or P6. What needle are you using? Most use a 6F9.

 

[grizld1]

Yep. NJ's as fat as the generic Q2 are used in racing, but P5 or P6 with a 6F9 needle (usually in #3 position) is a better choice for the street. You didn't mention needle position; did you drop the needle to #2 to control the fuel through the fat NJ's? If so, upstream effects would be pretty strong, leaning out the mixture at small throttle openings; your 25 PJ should be large enough. You might also check slide cutaways; 2.5's work well, but if the cutaway is 3.0 or leaner you'll have issues.

 

[remainincognito]

I just ordered the p5 nj and the 6f9 needles and I do have the 2.5. Hope this helps and thanks.