1997 Mariner 25hp, no fire to plugs, switchbox troubleshooting

Joeylee

Recruit
Joined
Jun 2, 2012
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1
I'm getting no fire to either plug. When I disconnect the orange/white lead on the switchbox and ground it, I get fire to one plug. Doing the same to the orange/yellow lead gives me fire to the other plug.

If I try to crank, then check voltage between the orange/white or orange/yellow lead, I get a steadly decreasing voltage. I'm assuming this is the capacitor discharging.

Does this mean the Switchbox is bad? I'd like to make sure before replacing it. Thanks for any assistance!
 
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