Hi everyone, new to the forum. I picked up a 2005 Sherco 250 2T and I’m having an issue with it. It starts and idles fine, but it falls flat at half or greater throttle. No power and it won’t rev out. Strangely, on rare occasion it revs out normally for a few seconds but then goes back to poor running. What’s been checked: Fresh gas at 100:1, new plug, no water in carb bowl, float height right on, reed valve good. Stock 118 main jet at 700 ft elevation. Air filter is clean. I think I’ve about eliminated fuel so I’m thinking it’s an ignition issue. Anyone have anything like this happen on these bikes? Thanks!