1968 mercruiser boat

Hunterw2004

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Aug 18, 2021
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I have been having trouble with my 1968 Mercruiser boat engine.it started up first shot in the morning,then I had no spark. so I bought a new ignition coil. Now I have spark but the engine still won't start. I was thinking maybe it's the resistors. Does anyone have a idea of what It could be. Thanks
 

CaptnKingfisher

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May 14, 2017
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I have been having trouble with my 1968 Mercruiser boat engine.it started up first shot in the morning,then I had no spark. so I bought a new ignition coil. Now I have spark but the engine still won't start. I was thinking maybe it's the resistors. Does anyone have a idea of what It could be. Thanks
If it was running good previously suddenly no spark, now new coil and won't start. Maybe you've just flooded the engine while cranking. disconnect the throttle link at the carb and hold the plates full open while someone cranks. If it begins to start quickly bring the plates back down towards idle so you're not revving the engine.
 

Hunterw2004

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Aug 18, 2021
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If it was running good previously suddenly no spark, now new coil and won't start. Maybe you've just flooded the engine while cranking. disconnect the throttle link at the carb and hold the plates full open while someone cranks. If it begins to start quickly bring the plates back down towards idle so you're not revving the engine.
I let the engine sit over night and it still won't start. Does the engine stay flooded even after sitting over night?
 
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Mar 27, 2010
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Read this from the "Adults Only" sticky at the beginning of this forum. Stop in there and check out all the other good info...

How To: Troubleshoot a Points Ignition System​

 

nola mike

Vice Admiral
Joined
Apr 22, 2009
Messages
5,367
It isn't getting spark to the points and condenser now,it has spark to the ignition coil but that's it
"Spark" doesn't come to the coil, the coil creates the high voltage and sends it on its merry way to the rotor and distributor cap, then to the plugs, where it turns into spark...
 
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