Well, a few years later... I have the chance to buy a reasonably nice 307 from a coworker. He says that it runs well, except that when it warms up, and he applies throttle, it hesitates, and then goes. This sounds a bit like FanticRescue's issue. Did this ever get resolved? Any recommendations, like 'Don't buy this bike, you fool!", or "Yeah, just do THIS, and it will work fine."
I can get this for reasonable $$$, and I am on a very limited budget, so if I buy a disaster, I won't be able to afford to fix it, perhaps.
Thank you for any advice!