96 polaris carb.grrrrrrrrrrrrrrrrrrrrrrr

[chevy2008 10]

Just put a new carb on my 96 magnum 2 weeks ago and the thing isnt right.. .well when left n full choke it idles but when giving gas stalls...but when i take the seat off and put my hand somewhat over the intake snorkle i call it...n giving throttle it runs ok..after it warms up it will stay idleing and sounds good...but very doggie from 1/4 to full throttle....how do i adjust this? I took the top cover off and moved the needle valve washer down 2 notches but didnt help..Is ther a ait adjustment screw anywheres? about ready to sink it....

Edited October 14, 2012 by chevy2008

[CK1999_400ex 11]

they made 3 different carbs for the older polaris machines .. 2 of them had airfuel mix screws and 1 did not .. if yours does not have it then you can adjust it some what with jets .. but if you can find a used carb that has the adjustment screw if yours dosent it would be alot easyer ... another thin that can be causing the prob if your machine is 2stroke is the reed valves might not be closing all the way and need replaced ... hope this helps ...

[chevy2008 10]

mine is a 4 stroke..and there is nothing on the out side of it that i can see to adjust..there is a small screw on the underside of it that is counter sunk up n

[CK1999_400ex 11]

the screw on the underside is the drain for the carb ... they bught some really cheap carbs and used then on the first couple years of the 4strokes ...the best thing would be to take it off and clean it really good and then when u put it back on make shure it dosent have any leaking of air between the carb and motor ..

[chevy2008 10]

ok ill check for leaks..its a new carb right out of the box

[CK1999_400ex 11]

i work on alot of machines and have found crud in brand new carbs b4 .. that caused them not to work rite ...