Cheap engine, new build. On any given day, I can get it running and then ride around for 5-7 min and seems to be running ok. But after then, the engine seems to just die down until it dies altogether. If I try to start it right back, I get nothing. But If I let let sit for say 30 min, I can do about the same thing: it may run for a minute or two and dies out. Same story every day. Appreciate any help!!!