No spark...

Rodznreelz

Cadet
Joined
Oct 4, 2004
Messages
17
I have a 1996 Johnson 225 Ocean Pro. When trying to crank, the engine keeps turning over-no fire. I tested a plug on each head and the plugs were firing. Shortly after, the engine tried to crank but never would run. About 20 minutes later, I tested the plugs again and they weren't firing. Seems as if something maybe be loose or going bad. What could cause this and what can I do to test/fix the problem?
 
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