[marlboro80]

anyone know how many turns out the air mixture screw has to be for a 155 jet? i already have the pipe and k&n, and dont want to spend the money on a jet kit if i dont have to.

 

[rngmstr]

There is no set amount off turns for the air screw with any givin main jet size, just play with it until you get it right. I would say screw it in until lightly seated, then back it out one turn, go in half turn incriments from there.

 

[tom6929]

CAN YOU TELL ME WHERE THE AIR SCREW IS AT? I CAN`T SEEM TO FIND IT

 

[rngmstr]

under the brass plug on bottom of carb. Grind or drill the plug out and the screw is there.

 

[daironfist]

on ringmisters i found that polaris sealed the air screw at the factory. I took a dremmel and ground it down until the brass filler fell out and a screw with slot appeared. you have to take about 1/8" off the top.

 

[marlboro80]

reason i asked is because on my 400ex, jet kit said out 3.5 turns and it was perfect!!