[Jtsarby]

Well. Along with my spiderbox, I found a deal on a fox carbide. The seller bought it for his son but it has sat for a few years. After sitting that long it wouldn't start without starter fluid. I replaced the carb with a new Japanese carb from buggy depot. It fired right up and idled smooth. I took it for a few laps and it wouldn't get up to speed. It was bogging down quite a bit. I pulled the air filter and installed a Uni filter. It then ran perfect for about ten minuets and bogged down again. It will idle smooth but won't move when I give it gas. Any ideas?