Originally Posted by
Mope
My two cents - there's lots of folks here that are great at trouble shooting.
Normally, the TPS would be the first thing to recommend as it sets a good baseline; sounds like you know about that but can't do so at this time. I'd be checking for an intake leak next since the problem worsens as the bike warms. That's something that you can do now without any(little) cost and is a common culprit (although, when you say RPM = Zero, does the tach drop to zero and the bike is running or did it stall out? That answer points toward mech vs. electrical issue). Your picture is small, but it looks like that seat might be..........rednecked? You could have a situation where your seat is rubbing the ECM. I'd let her get hot, pop the seat off and move the ecm/wiring a bit to see if you can set off symptoms.