New build- starts and dies immediately

[BombThreat]

So I have been chasing a electrical gremlin in my superjet. Hopefully you guys may have some ideas. It's a 701 with stock 62t flywheel And stator. NEW epic hx3 cdi and reman coil from ocd solution.

Apon test firing the ski, it will rev once and die immediately. I pulled the red and brown wires to the start stop and when jumped it will start and run fine. I've jumped in another start stop and the same problem persists. Any ideas on what it could be?

 

[BombThreat]

Tried new plugs, from a known running sk. No dice.

It will fire every now and then randomly. No real ryhme or reason... Bad epic?

 

[bach6177]

Start stop switch, just had the same thing on a customers ski. Or possibly the epic


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[Jet_jase]

I'd try putting a stock CDI in and try it....both MSD and Epics are known to fail (Even out the packet). Also try pulling you stop start apart at the bar end and see what the connections are like....Don't forget to look behind the rubber boot on the landyard part with the 4 wires going in the back, i've had a pretty poopted up one before.

 

[BombThreat]

It's not the start stop. Just tried one I know for a fact is good. I've narrowed it down to the fact that it will not run when the red&brown are connected to start stop. But when I disconnect it will run fine when jumped.

 

[Lumpy]

Check your ebox wiring?

 

[BombThreat]

Found the issue!

The black wire coming from the HX3 for the external toggle switch was connected to a ground. Once that was disconnected all issues seized. I should have paid better attention to the wiring diagram!

 

[BombThreat]

Well now it's all together and the same issue is back. Fired up fine all week in the shop and about to water test today and its back at it. I left the battery connected. As if that could be a issue? I'm just tired of jerking around with this thing. Going to swap a different cdi in it.