Super Jet Carb Tuning and Pipe Tuning

[r12xmark]

Hey I need some help getting my base tune setup for my 2012 superjet.

The ski has ADA Girdled Head with 35 cc Domes, Factory B pipe, Prok Air Filters. Carbs are jetted with 95 Gram Springs, 75 Pilot Low Speed Jets, 135 Main High Speed Jets.

Looking to get the absolutly most Low end power I can out of this setup.

Can Someone Direct Me with some Good Carburetor adjustment settings along with B pipe Adjustment Screw Settings.

Also If anyone knows where I can get the T handle Screws I need for my Carbs let me know too, as I can fine tune once ski is in water.

thanks

- Mark -

 

[r12xmark]

no one has some base settings?? from what i read for the b pipe i should close my top and middle and open my bottom screw about 3/4 turn.. this will make for best bottom end???

and for the carbs... high speed screws 1/2 turn out from closed and low speed 1 1/4 turn from closed

any input??

 

[user_error]

i would think you might need larger jets. id try 80 low and 140 highs to begin with so you dont have a chance of being too lean

 

[High Speed Industries]

I suggest reading the instructions for your factory pipe. They give you carb settings and tell you how to dial in your pipe.

http://factorypipe.com/media/instructions/yamaha/701SJ03.pdf

 

[Philip Clemmons]

Typically the top screw adds a bit of bottom end, but kills rpm. Its a matter of preference. Everyone has their own opinion. The total package comes into play (prop, timing, water routing, etc).

As far as the carbs, if you don't know how to tune them, get help from someone who does. There is only one "right" setting, and that will be found by careful tuning of the boat in the water. That being said, FPP's instructions provide a great starting point.