I own a 34' sailboat that has a 1985 Yanmar 3GM30F that needs repaired.
Can't get the rpms out of it that I had in the past plus I am blowing some
black smoke and while in the slip if I give it hard throttle I can see black
floating on the water. This all occurred after the injector pump was
replaced and adjusted by a yard mechanic. My max rpm's in the past was
3200 -3300 which could be more but is limited by the throttle hitting my
steering pedestal guard. Right now I am getting just 2800 rpms max.

After the suggestion from the mechanic I replaced the old fuel with new
fuel and filters and some hoses were replaced. Fuel line is clean. Fuel
tank pickup is clean and not clogged, tank is clean. I am tired of playing
with the problem. It has been almost 2 months since I have been on the
water. I am looking for recommendations on a good marina for repairs
somewhere from Annapolis North to Pooles Island.

Thanks