2003 vstar 1100 starts and idles, but dies when throttle is applied
This should be an easy fix, but it's got me pulling my hair out (what's left of it) The bike is a friend of mines and I told him I would be happy to work on it for him. The story behind it is this, he was selling it after buying a new bike. So he went to fill the tank when someone called to come look at it and on the way, apparently he heard a pop(I'm guessing it backfired) add he was going up a hill, and then he lost all power. After getting the bike to my house, and looking into to it some, he didn't lose electrical power, the bike just bogs down when you twist the throttle.
I figured it was a definite carb issue, so I ordered some kits, removed the carbs, tore em down, soaked them, blew out all ports an ran carb cleaner through each one and reassembled them. After reinstalling, I still have the same symptom. I have removed the carbs 3 times now to make sure I didn't miss a port or something and have yet to fix it. I decided to go a different route and check everything that out U could think of. I installed new plugs, even after checking to make sure that both cylinders were firing and getting hot. Installed a new fuel filter and tried a different pump to make sure it wasn't a fuel pressure issue. Nothing has seemed to work.
After stepping back, scratching my head (reading a ton of forum posts) and thinking about it a little more, the issue happened after he was already riding and came on instantly. If it would have been dirty carbs, I would think it would have happened when he started it up, not while out riding. So I really do think it's not the carbs anymore, but maybe ECM related? What do you think? Anything else I might be missing here or not thinking about?
I hope to get this bike back on the road for him before spring!!!