I received the engine along with the super tigre onroad .18 pullstart and it mounts to the backplate but pulling on the cord does not turn over the engine. I also borrowed a friends duratrax spin starter and it just spins the super start without turning over the engine. I think it's spinning the wrong direction which is why the motor doesn't crank. Is this the problem? I'm thinking the pullstart is also spinning the wrong way and not engaging the crankshaft?