When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
i have an 84 atc 250r and i need to adjust the air fuel mixture on it but i dont know how to know when its right or what way to turn the screw to make it lean or rich, anyinfo will help