Looking for more help. I posted before about severe backfiring and a bog/stall when I whack the throttle off idle. The bike also won't idle properly. It stays high and slows down after 20-30 seconds, usually. This all came about suddenly with no changes at all. 2001 bike that had 30-40 hrs already. I have narrowed it to the carb by swapping my carb with someone else. On my carb I have checked for leaks, cleaned 6-8 times, checked accelerator pump, rejetted who knows how many ways, verified float height and operation, verified hot start not open/leaking, did an ohm test on the TPS, it was on the high end of spec on both idle and open throttle, but given how wide the spec is I don't think it would matter(did not do the idle adjust). Can someone explain how the TPS actually works. One thing I have found is if I open the choke and jet it to run with the choke open things are okay, but I can't get the same effect by richening through jetting. Your help is appreciated.