550 BN carb tuning help

zxabx

X
Location
michigan
Hey
I have a 1990 kawasaki SX550. I just put on 44 Mikuni BN carb with a 44 Mariner manifold. also i put on a Jetsport exaust manifold and a Westcoast pipe. This is my first ski I've tried to modify, and can I can't get the carb tuned in. any idea about what the jetting should be?
Max
 

onesojourner

I use a thumb throttle.
Location
springfield, mo
do you have a super bn or a bn? if you have a bn then you can't rejet. you get what you get. all adjustments have to be made from the high low and mid screws. do you have a manual? if not I can look in mine when I get home and see what the stock settings should be.

just for future reference the good ole 550s are considered old school, your get more hits sticking it in the old school section.
 

onesojourner

I use a thumb throttle.
Location
springfield, mo
alright sorry it took me so long. I can't drive right now so I had to bum a ride.

the low speed is on the right and the pilot screw is on the lower left the high speed is on the upper left.The stock settings are low speed-1 and 1/16,pilot-1 and 5/16,high speed-15/16.
 
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