I had my bike jetted last week and it had a slight bogg in a 1st,4th, 5th. After running through all the gears it would stall as I'm downshifting from 5th to 1st to turn around and do it all over again. So I thought this guy didn't know what he was doing, so I brought it to a dealership that I know does some good work on sportbikes. The guy was writing it up and said lets check it out and started testing riding it in the back of the dealership. He was only able to get to the top of 3rd gear and he said bike ran great pulled really strong and of course didn't stall during the test ride. He said if you want you can leave it but I don't see anything wrong with it and don't see us gettin it to run better then it already does. Now my question is does this happen to all bikes with full exhaust when you pull in the clutch until you slow down enough to make a u turn in first gear while downshifting then stall out?

Sorry for the long story just want you to know everything that happen so far.

 

Unless your really lugging the motor yes it will stall. I would downshift first then before you make the u-turn pull in the clutch. Then you should be able to feather the clutch to take off again while in the u-turn if need be.