Testing Ignition Coils on the Mercury 250 Pro XS Optimax Outboard Motor Part 2
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Outboard Ignition Problems! Diagnosing a Rough Running Outboard - Part 2
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Testing Ignition Coils on the Mercury 250 Pro XS Optimax Outboard Motor Part 1
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Ignition coils and HT leads
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“No Spark” Is it a Bad Switch Box, Stator or Trigger? Using a DVA Adapter - 1989 45 hp Mercury
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Mercury OptiMax cooling system alarm
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Ignition System Upgrades For 2007 Mercury 225 Optimax! #ignitioncoil #mercuryoutboards #sparkplug
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WEAK OR NO SPARK? DOES IT NEED A NEW COIL? / OLD MECHANICS TRICK TO FIX A MAGNETO IGNITION SYSTEM
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