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Yamaha stern drive yems ignition

S

Scott Stephens

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"anyone out there who knows th

"anyone out there who knows this system? I have no spark at #4,#1 cyls on 4.3 v6. cam sensor gap o.k.,all harness plugs look good.temp.,oil pr., temp.,& water flow sensors working. also, what is upper hall switch for? doesn't seem to align with anything, and nothing happens when feeler inserted when running."
 
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