This is a well known problem with Yanmar engines. I had exact same symptom on a previous boat (Yanmar 2gm20f). Apparently, the wiring from the starter switch to the starter solenoid is NOT QUITE adequate to always energize the solenoid. It can be fixed by adding an additional relay. See the following link for details.
http://www.cruisersforum.com/forums/f54/yanmar-starter-is-intermittent-9085.html Cheers, Mike C&C30 mk II Echappe From: Indigo [mailto:ind...@thethomsons.us] Sent: Friday, September 20, 2013 8:52 AM To: cnc-list@cnc-list.com Subject: Stus-List Yanmar 3GMF Starting Problem Recently Indigo has developed what is currently annoying problem, but could become more serious. After turning the key (and getting the low oil-pressure buzzer), when I press the starter button, absolutely nothing happens. I press it again, and it usually starts right up. Occasionally more pushes on the button are required. Is the remedy going to be simply replacing the push-button ignition switch or am I likely facing something more to fix? Indigo - 36MKIII Southport CT
_______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
