1996 Evinrude 9.9 HP 2 cycle, 2 cylinder no spark

[wickware]

I have a 1996 Evinrude 9.9 HP 2 cycle, 2 cylinder outboard which has a weak or no spark at the spark plugs.
From what I can see on the engine and some parts lists it appears it has a "coil" in addition to the magneto spark energy from the flywheel (assumption, I have not pulled the rope-starter/cowling). I think this is what is in the rectangular housing that has the two high voltage spark plug wires coming out of it. The other wires are typical looking 18 gauge or smaller wire... and I assume this bring the relatively low voltage magneto current to the coil where the voltage is stepped up to spark levels. This may be the faulty unit. But, I'd like to have some idea of what the coil is... i.e., can I read a low resistance path from the spark plug wire back to ground? That is "see" that the coil is not open. It would be nice to have some description on how this ignition works... I have searched the web. JOW

 

[Jerry_NJ]

Re: 1996 Evinrude 9.9 HP 2 cycle, 2 cylinder no spark

Hey, I can relate to this post, in fact I think I recognize the syntax

First, I can confirm that is a dual coil in the description that is driven by the flywheel (magneto I assume) and a "Power pack", yes electronic it seems. On my unit the wires (not spark) are solid Orange and Orange with a Blue trace. I find these wires are both grounded, and I think that is not correct.. may be the problem in my case. Looking back into the Orange and Orange/Blue wires individually with an ohm meter I see an open.

Each coil measures on a digital ohm meter 0.28 ohms, which I think is correct and confirms the coils on my unit are not open.

Can someone confirm what one should "see" looking back into the Orange and the Orange/Blue terminals on the coil? I think one is supposed to be grounded and is used in the "kill" circuit (beats me why that circuit goes all the way to the coil unit to get a ground).