I am a regular over at the DRZ site but I hope you don't hold that against me. A co-worker of mine bought a brand new XR250 to trailride with his son(XR70 so you get the idea of the intensity of riding). He bought the XR because of its ease of use, lack of maintainence required, and most of all the quiet. Since I am the "bike guy" at work he came to me with the following problem. Situatuion: XR250 bone stock 5000' elevation. Symptoms: Runs good at low RPM, good throttle response. Hesitates at mid to wide open throttle, feels boggy. 1st cure attempt: Takes bike back to dealer where they remove the silencer baffle (restrictor). Bike now runs good except that it is loud, and has a mangled exhaust. Is there a way to get this bike running good with the stock exhaust setup? (ie quiet). My first thought was the bike was rich wrt to needle position and/or the main with the restictor in place. He complained that the bike didn't have enough to loft the front with the restrictive exhaust in place. I responded by saying he should have got the 400. He didn't smile. He is my boss. Please help a hapless Suzuki rider. cheers.