BurnPgh wrote on 07/08/10 at 20:49:04:Dont know your present carb set up but I experienced SOME similar problems with the Vm38 you sent me until I realized I was running very very lean. I've got the UFO but no DAJ and had to up-jet to a point that I wouldve considered extremely excessive based on the forum information, except for my real world results. I dont mean to sound like an upstart talking carb issues to the carb guru but...if it isnt your coil/plug and it isnt your CDI and it isnt your timing...
I understand completely, you've got to go with what works for you machine.
I have switched carbs back and forth during this process between an Edelbrock and the VM with the same result.
The Edelbrock was on at the beginning and everything ran really well, smooth and easy from the time I first hit the starter button. I road for 3 or 4 days about an hour for each ride without one single hickup the whole time.
A few hours after that last ride I started it to go out again after changing the needle for a richer one, and it did not want to run right, with symptoms as described. So I went back to the first needle butno change, still crazy, and it has been like that ever since.
This is really strange.