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Mercury 6.2 mai cold start issue

Kevinm2219

New member
I have a 2002 mercruiser 6.2 mpi that recently developed a cold start problem. Engine cranks fine, plenty of battery power but won’t fire. While cranking engine, It only seems to attempt to fire when key is released and throttle opened up. It will stumble a few times again when key is released and then finally after about 20 minutes of doing this will fire up. After the engine is warmed up, it will start the rest of the day with no issues. After sitting overnight, same problem. Any help would be appreciated.
 
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