Re: 2 high in humboldt?
Try putting a few miles on a stock engine before trying aftermarket go-fast options. I think you'll have better luck and enjoy your bike a lot longer than a 1/4 mile.
From what you've told us I can only assume you have Chinese 2 stroke engines.
If the engines seized I'll have to question your fuel mix. What ratio of oil to fuel are you trying to run? What oil?
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"