I have a 3w 80, rear carb, EI engine, which is my first 3W engine. There is apparently a safety mechanism built into the EI which requires the engine to be turned thru twice before the EI arms. After I do this and try to flip the engine, I notice as the magnet rotates past the hall sensor, the light goes out. The engine will not hit at all. It has excellent compression, and I am using a 6 volt 2000 NiMH battery for the EI. What am I doing wrong???