I think now that the problem with the chainsaw bike is that the gas tank I built wasn't vented. I think that because I changed the carb and it did the same thing. Then I poured some gas down the pug hole and it fired up. The plug was dry before so I know it wasn't getting any gas. I'm pretty sure it was the gas tank.

I have the WW almost ready to try out as well. I need to set up the controls and the hinges but I got the mount welded to the bike frame. So I'm more than halfway there. I also have a bigger carb on the bike with the reed valve adjusted to allow more gas.