Recent content by Marko888

Ok. Tested my theory. Brothers 07 300 EC. Stock 180 mj, needle 3rd from top. 38 pilot(not positive of this) Would not rev out...blubbered at WOT. installed 172 main, clip 2nd down from top of needle. Same stock pilot. Big improvement. 65`, 2500 feet elevation. cheers

Hello, I'm new here today...looking for jetting info to help my Bro with his new '07 EC300. I have a KTM 300XC. Reading this post, my first thought re this wide open stumble is that the 178 main is too rich to allow the bike to run. I think it is drowning in fuel. The clue is that the larger...