I have a 6 year old Yanmar
4JH4-TE and a 24" Maxprop on a CSY
44 w/o. I did bottom paint
in the end of June and yard serviced Maxprop. Since then, I have had black transome soot mustache and seem to have lost
some speed. Mechanic
advised me that prop was over propped, so I called the yard and asked if they could check the settings and that maybe it didn't go on same as it came off. They agreed to. PYI, Maxprop's tech said with my engine
and prop I should be pitched at 16 degrees. Mechanic
swears I'm over propped and we should take to next setting which is 14 degrees. Has anyone had similar issue or same configuration that knows their settings? This is going to cost a yard haul and block now that they had it on the manufacturer's recommended setting.
Any ideas why else I might be blowing black smoke and losing a bit of power?