We have a Super Maramu built 1998, and we hade the same problem with
our Volvo Penta, maybe it could be the same on a Yanmar.
We did do as Ann&John SM #319 suggested but it wasn't enough. Then we
hade the nozzels/injectors changed. And we had no more problems.
Jonas and Annsofie
--- In email@example.com, "jlucmertz" <jlmertz@...>
props re-iscleandeveloping> as is the underbody. This means we are only capable of> around +/- 60% of rated power say around 50-ish HP.
engine> feathering prop?The owners manual for my Yanmar 75HP recommends that if the
tohas been on a light load for a while that it should be run up
shouldmaxrevs to burn off the carbon build up on the turbo fan. This
exhaust.bedone several times until white smoke is cleared from the
for aHaving done that it is important to let the engine tick over
areminute or so before turning it off so that the fan bearings etc
drycooled/cleansed with > oil rather than leaving the burnt oil to
timein place. It also > recommends injecting a water/soap spray from
to time but I have> not been brave enough to try this!