Well guys I bought a harbor freight clone, and of course with my luck it has a problem. So here it goes, I started the engine for the first time last night and it ran great, the second time it would not run for more than a minute and needed choke to start. Today I tried again same thing, so I opened the carb and everthing looked good. I narrowed down the problem to a faulty gas on/off switch. How would I go about fixing the switch ? I ordered the engine online so I don't even know if I can send it back or not ? Any insight would be much appreciated.