Just wanted to post my experience in case anyone else is having problems with TMX carbs on husky's. I picked up a used 99 WR250 and had hard start, poor low-end, stalling issues from the start. I did the top-end, reeds, rejetted numerous times, no relief. I happened to read a post about Honda CR250's with the same 38mm TMX carb and the advice was to toss it. I picked up a 38mm PWK and the difference is dramatic. Bike starts first kick, pulls smoothly at any rpm and doesn't stall constantly. The carb fit right into the old boots, it is slightly wider opening to opening, but there is enough play. The best mod I could have done, makes me wonder how well it would run with the 36mm PWK like the KTM's are running.