Rush7

My Feedback: (74)

Hey guys I am still new to gas engines. I bought a US Engines 41cc to put in my P-51 mustang.
The question that I have, is the connector on the coil to be used as a ground point to ground the coil to kill the engine? Basically do I hook up a wire from the flat male connector on the coil through a switch back to the chasis of the engine?

I ran the engine for the first time today and to start with the engine was really rich. When I went to pull the the throttle cut on my transmitter it took the engine a while to quit. No big deal. On the next run I just covered the carb to kill it. When I got all the needles set correctly and got the engine transitioning well, it did not seem to be a problem to kill it with the throttle cut.

I would like to have the security to know that I could ground the coil to keep it from firing while I am priming it. Just in case the throttle kill on the transmitter doesn't work, I know that I can kill it with the carb but I would like to have the switch to ground the coil also.

Thanks for any help................................

beepee

Your approach to wiring the kill switch is correct. I recommend you not run the engine without one and it is best to have the switch in an easily accessible location.

Good luck!

Bedford

mogman

Hi Rush. Yes you are right, run a wire from the terminal on the coil through a switch and ground to the motor under a convenient bolt ( I use one of the coil mounting bolts).
Cheers, Dave.