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Old 04-07-2017, 07:20 PM
rovi rovi is offline
Junior Member
Join Date: Jul 2011
Rep: 10 Posts: 59
2007 mercury optimax 150 probl

Hi all, I have a new issue with optimax 150. Was working quite well then it immediately stopped idling. The air and fuel injectors seem to be pulsing properly but three spark plugs have heavy soot or carbon deposits on them after every attempt to start the engine. The plug positions are 1 3 and 4; I would really an understanding of what's the cause and the solution to this problem. Thanks and I'm anticipating some help.
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