raptor 3flipty
04-04-2007, 06:37 PM
Just thought I would add on to the never ending jetting questions. First off this is regarding a Raptor 350 2007. Whats done to the bike is HMF slip on exhaust & GYTR air filter adapter with UNI fom filter with airbox lid on. I figured it was time to jet the bike to take advantage of its performance upgrades. So I bought a GYTR jet kit since it was recomemnded. It was alot easier to read the jets since it has corresponding numbers to the stock jets. One huge difference that I encountered was that the stock needle was bigger in diameter and a tad shorter also that there is only one slot for the e-clip. Compared to the needle in the GYTR kit. So when intalling the aftermarket jets I started large 165 on the main and went down accordingly due to the engine bogging. The pilot jet was change from its 22.5 to the 25 pilot. I am using he supplied GYTR needle that has 5 grooves with the clip on 3rd position. Mixture screw is 3 out and has been adjusted numerous times thru out jet trials. I am new at this and read plenty of instructions but have not succesfully gotten my Raptor to run efficiently. Main jets I have tried 145, 150, 155, 160 &165. These all bogged and backfired from the pipe and air box @ 1/4 to 1/2 throttle while the pilot jet was 25 & clip on 3rd slot for the needle. Am I missing a step in this jetting adventure? Any help? tips / experience would greatly be appreciated. Love the pipe! just need to get it outha the garage....