If the problem persists after following the advice that has been offered, good troubleshooting practice is to determine if the issue is fuel or spark related which as far as I can tell has not been done. Immediately upon shut down or during a no-start episode pull the large coil wire out of the center of the coil, with insulated pliers or a rubber gloved hand hold its end 1/4" from a head bolt and have a helper crank the engine. Look for a snappy blue-white spark.
Good quality spark = yes, the problem is likely fuel related
Spark = no or weak, pursue ignition issues and we have quite a bit of experience in that area
Be sure to keep the raw water intake thru hull valve closed during cranking until the engine starts.
edit: please clarify "starter coil"
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Neil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
Last edited by ndutton; 06-30-2018 at 12:47 PM.
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