Running like it is running out of gas! update

[Magnum Magna]

I believe that was the first thing changed. I have not had a problem after changing the vent tube going to the auto-shutoff.  I have been on the bike almost everyday and have not had the problem.  I wanted to ride a two hour ride or more to call it fixed.  But I am almost sure it was the tube becaus it was a little cracked at the end.