ORIGINAL: BarracudaHockey
Weird. Amplified Y harnesses and that are no-no's on Spektrum system but your setup should work. My guess, since 2.4 really doesn't react to ''interference'' like that is that you have a vibration problem. The first thing I would try is reseating the connections in the extensions.
You also might try it with one at a time plugged in.
Hi Andy i'm about to set up a similar ignition system and have never heard of amplified in respect to "y" leads.Is there a thread you could point me to for a good explanation about the ideal set up as i've only run glow engines before.Cheers