2.5 turns out 1 up on the pilot and 2 up on the main and tune it from there. there is no magic number or short cut. you have to make a change, run it, and check the plug. adjust and do it again until its right. order some extended air mix screws, makes mine tuning much easier. the closest thing to a short cut is the sigma jet kits. go to their web page. enter your machine elevation and mods and they custom build you a kit that will get you in the ball park. then its just a matter of needle adjustment and air mix screws
A forum community dedicated to Yamaha ATV owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, racing, maintenance, and more! Open to Banshees, Raptors, Blasters, and others for recreational riding and racing.