Asking for help with my 2000 Pro Air Nautique with GT40 motor... Crank but No start

[keoni5]

Probably didn't injest water - should have cleared out by now anyhow.

Oil shouldn't matter just for start up on ether at least.

Essentially no vacuum hoses on the thing to mess up.


I mean, if it won't even fire on ether, you're back to timing. And even then she ought to backfire, so it's not that. Someone didn't leave a rag in the intake did they?

I'm fresh out - good luck

I was thinking something with the kill switch circuit perhaps?

[crobi2]

Well, I think the emergency kill switch just cuts off the fuel pump(s), but you've seen appropriate pressure on the fuel rail so it's probably not that. Besides, if it was just fuel, she should have run for a least a few seconds on the starter spray.

I mean, she's acting like nothing is getting into the cylinders. Maybe you can check the intake with the palm of your hand and see if she is pulling air as the motor cranks. Also, I guess you could go ahead and see what compression you are getting on your cylinders with a compression gauge.

Did you replace the cam? Doesn't make sense that the lobes are gone, but it's been heard of before.

I mean, the crux is that she won't even run on the ether.