Might be injectors. Or plugged air intake. Check intake, make sure it is clean. Do you use any fuel additives? I use Soltron, it helps keep the injectors, and fuel clean.
Sent from my T-Mobile 4G LTE DeviceDoug Mountjoy POYC Pegasus [for sale] Lf38 New boat LF39 -------- Original message --------From: Dave S via CnC-List <cnc-list@cnc-list.com> Date: 8/3/17 18:23 (GMT-08:00) To: C&c Stus List <cnc-list@cnc-list.com> Cc: Dave S <syerd...@gmail.com> Subject: Stus-List Yanmar 2gm black smoke on start Evening all This just started. Black smoke on startups clears with rpm. Have read that's unburnt fuel. Have not serviced engine other than oil and filter... suggestions? Tx. Dave. 33-2 Sent from my iPhone _______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
_______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!