I built this for one of the past build offs, I recently added a vintage Tanaka engine I am still trying to get the bugs out of the motor, If I am on the right track I think I need to seal up the vent tube on top of the fuel tank, as the fuel sucks up from the bottom of the carb, I can get it running but it wont continue as it seems to run out of fuel, I also want to change the front wheel to a skateboard wheel to make contact with the tire.