Hey, need help with Raptor jetting for my cousins raptor. Its going to have Curtis Sparks full exhaust, and K&N w/outewear. By the way can you have the lid off with a regular K&N filter, or do you have to have the pro design with the clamp ? Elevation is around 700ft (Dumont Dunes), what jets, and aftermarket needle, and fuel screw turns should it run or just use stock ?

 

You can't remove the lid and run the stock filter set up. The lid holds the filter in place. It's a really stupid design. Go with the pro-flow setup. It's safer and allows for a larger air filter. As far as jetting, a lot of companies offer a good jet kit. You can buy mains at your dealer, but if you want a good kit, I recommend the GYT-R kit. It comes with everything, pilots, mains, needles. You may need to buy a couple extra jets, though.