Hi, I am working on a 1999 Impulse 50 for a friend. It runs fine at idle, but when yah get going it starts sputtering, and almost dies! I took the carb off ,cleaned it and it was fine, no clogged jets! It is getting fuel, and has a new plug in and the filter is also ok, I was wandering if anyone has had a similiar problem with one of theese mini qauds? Thanks