I need to jet my bike and it have 170 main and it is too rich.. it not run to good in low rpm's but good in high rpm's. the air screw is in all the way and I can not get it to ilde.. and I have to chock it after it is hot to get it to start.. what jet and where should I go from here?? thank's

 

Stock size is a 112.5, but a 115 would work on a stock quad, it really depends on mods.