gordonwhite96
Member
Hello,
I have an older 6a that has a the LS Plasma II CD Ignition on one side, magneto on the other.
Yesterday I started up fine, noticed the digital tach was off and the 5a circuit breaker was popped. Push it in, it pops back out. Proceeded to run up since I have a steam tach. Sure enough, on the Right position (electronic ignition), the engine dies.
Today, looking for some kind of electrical culprit I observed the following:
1. If you disconnect the input serial cable to the CDI box, the breaker does not pop.
2. I started tracing wires and discovered that when I connected my battery charger harness, I did not put the negative wire back on the battery bolt. This was 6 months ago, so I guess it still worked because it was resting on top of the bolt?
3. I didn't find any other obvious wiring faults.
4. I replaced the breaker with a brand new one and it popped immediately as well.
5. All breaker pops happen with the key off and master off.
6. I flew the night before, no issues during run up, no passengers in a month or two.
Is it possible that the ignition box was somehow damaged with the loose negative? Or is it just some other short happening behind the panel?
I found the installation documentation PDF at lightspeed-aero
Any ideas on where to look next?
Thanks,
Gordon (RV6a N50MR)
I have an older 6a that has a the LS Plasma II CD Ignition on one side, magneto on the other.
Yesterday I started up fine, noticed the digital tach was off and the 5a circuit breaker was popped. Push it in, it pops back out. Proceeded to run up since I have a steam tach. Sure enough, on the Right position (electronic ignition), the engine dies.
Today, looking for some kind of electrical culprit I observed the following:
1. If you disconnect the input serial cable to the CDI box, the breaker does not pop.
2. I started tracing wires and discovered that when I connected my battery charger harness, I did not put the negative wire back on the battery bolt. This was 6 months ago, so I guess it still worked because it was resting on top of the bolt?
3. I didn't find any other obvious wiring faults.
4. I replaced the breaker with a brand new one and it popped immediately as well.
5. All breaker pops happen with the key off and master off.
6. I flew the night before, no issues during run up, no passengers in a month or two.
Is it possible that the ignition box was somehow damaged with the loose negative? Or is it just some other short happening behind the panel?
I found the installation documentation PDF at lightspeed-aero
Any ideas on where to look next?
Thanks,
Gordon (RV6a N50MR)