i bought this boat with 2 outboards almost a year ago, one engine runs great, the other has been a pain since i bought it.
they are twin mercury 2007 efi 150xl
the problem with the bad engine is and has always been the same.
it starts right up, doesn't run very clean but it does run and idle.
as soon it runs under load for a few minutes the engine will shut off due to excess of fuel and oil.
to turn it back on ill have to leave the starter on for 10 seconds or more until it comes back up again, but then it starts smoking like crazy, wont idle properly and keeps going off.
all i do is trolling, so when i troll the engine runs and you can watch it get filled up with oil and gas within minutes until it shuts off.
the only time the engine does run properly is when completely accelerate the other working engine, then the bad engine does come up and runs good, this is only at full throttle.
i have changed all filters, spark plugs, both fuel pumps, water pump, gaskets and i have replaced the reed blocks with USED reed blocks.
there definitely seems to be a huge excess of unburned fuel, the spark plugs are also full of oil within minutes of cleaning.
also see attached pics of the oil sludge coming out of the prop after running
heeeeelllppp im desperate, nobody seems to be able to find the problem !
http://tinypic.com/r/263ec6x/8
they are twin mercury 2007 efi 150xl
the problem with the bad engine is and has always been the same.
it starts right up, doesn't run very clean but it does run and idle.
as soon it runs under load for a few minutes the engine will shut off due to excess of fuel and oil.
to turn it back on ill have to leave the starter on for 10 seconds or more until it comes back up again, but then it starts smoking like crazy, wont idle properly and keeps going off.
all i do is trolling, so when i troll the engine runs and you can watch it get filled up with oil and gas within minutes until it shuts off.
the only time the engine does run properly is when completely accelerate the other working engine, then the bad engine does come up and runs good, this is only at full throttle.
i have changed all filters, spark plugs, both fuel pumps, water pump, gaskets and i have replaced the reed blocks with USED reed blocks.
there definitely seems to be a huge excess of unburned fuel, the spark plugs are also full of oil within minutes of cleaning.
also see attached pics of the oil sludge coming out of the prop after running
heeeeelllppp im desperate, nobody seems to be able to find the problem !
http://tinypic.com/r/263ec6x/8