Ok...I will try to be brief...but I have had a really stink'n boating season w/this motor. I purchased a 24' pontoon in June from a person who let the boat sit for 2yrs w/out maintaining the motor as in puting fuel stablizer in the tank and you know what those carbs looked like.....anyway he had the carbs cleaned and said this engine is good to go..looks great. purchased the 'toon...now from then I will list what has been done to this motor..thank goodness the guy I purchased from has paid for all of the repairs. I have not had one good day on the water from the day I purchased. The motor would die like it was starving for fuel. would go like crazy and then die to the point that rpm's would not go over 1500rpm and 2 mph...so everyone was pointing at the fuel system.
Carb rebuilt and cleaned.....5 times
all new fuel lines replaced inside motor and outside motor
fuel tank cleaned out and flushed w/some type of sealant to keep debris
from entering carbs
fuel pump rebuilt
spark plugs replaced as one plug had fouled
Lastly just happened this weekend....took the boat out and was dead in water where I had to be towed to the boat launch. time before i was able to gimp back to launch this time...DEAD
Got it back to the mechanic and he tore the engine apart and found that the pistons were fried...scorched for what reason I don't know...he said it wasn't from no oil as there was plenty of oil on pistons. One piston was stuck so badly it almost pulled the sleeve out of the cylinder. The cyclinders are now at a machine shop to be bored...new pistons and internal guts are on order and motor will be rebuilt. The mechanic swears that this motor will be as a new motor coming back from factory, also there was low compression on one of the cyl of 70 which he was aware of before I got it back from him to take out on the water this weekend and the engine was knocking....which I was not aware of. I am asking for advice from the experts...I don't know if I should go forward w/this boat engine once the engine is rebuilt. The gentleman I purchased the boat from said he would give me my money back...HELP!!!!
Carb rebuilt and cleaned.....5 times
all new fuel lines replaced inside motor and outside motor
fuel tank cleaned out and flushed w/some type of sealant to keep debris
from entering carbs
fuel pump rebuilt
spark plugs replaced as one plug had fouled
Lastly just happened this weekend....took the boat out and was dead in water where I had to be towed to the boat launch. time before i was able to gimp back to launch this time...DEAD
Got it back to the mechanic and he tore the engine apart and found that the pistons were fried...scorched for what reason I don't know...he said it wasn't from no oil as there was plenty of oil on pistons. One piston was stuck so badly it almost pulled the sleeve out of the cylinder. The cyclinders are now at a machine shop to be bored...new pistons and internal guts are on order and motor will be rebuilt. The mechanic swears that this motor will be as a new motor coming back from factory, also there was low compression on one of the cyl of 70 which he was aware of before I got it back from him to take out on the water this weekend and the engine was knocking....which I was not aware of. I am asking for advice from the experts...I don't know if I should go forward w/this boat engine once the engine is rebuilt. The gentleman I purchased the boat from said he would give me my money back...HELP!!!!