Not sure where to start with this engine.......
Engine is a 2004 F50TLRC
I bought the boat from a friend that had it sitting with old and probably ethanol based fuel for about 4 years or so. After doing some basic maintenance on the engine and getting it ready for the water again i take it out and it would not want to go past 2400rpm. It would just bog down. I noticed it was cyl. #2 not working at that rpm.
I disassembled and cleaned out all the carburetors but that did not fix the problem.
I went thru the carburetors a second time and on #2 carburetor I noticed i had to stick a soft cleaning rod thru the main jet to unclog it and be the same size as the other jets. Went back out for a test run and it ran almost perfect at 5500rpm more or less.
After using the engine once more after this it ran fine for a couple of runs then it went back to the same similar problem as before but this time it was on carburetor #4 and it had a white almost rock stuck right on the main jet. Cleaned it out once more. And this time i added and external fuel tank and installed a second filter inline. Also changed out the water/separator and small filter in the engine. And blew out the fuel lines. Basically everything in the fuel system is new.
Went back out again and this time it ran really good and smooth all morning. No issues. But almost before leaving and after a short WOT run i started noticing it was running a bit rough on low speed. Right around 2200rpm but it runs good at higher speed past this. So this is to the point im at now. And now its on cyl. #2. Looks like the low speed passages now got clogged up.
Why does it keep clogging up like this? Even after running on a new clean tank with clean fuel? Can the metal of the carburetors be falling after itself inside. ???
Sorry about the long post. If anyone has any suggestions please share. Thanks.
Engine is a 2004 F50TLRC
I bought the boat from a friend that had it sitting with old and probably ethanol based fuel for about 4 years or so. After doing some basic maintenance on the engine and getting it ready for the water again i take it out and it would not want to go past 2400rpm. It would just bog down. I noticed it was cyl. #2 not working at that rpm.
I disassembled and cleaned out all the carburetors but that did not fix the problem.
I went thru the carburetors a second time and on #2 carburetor I noticed i had to stick a soft cleaning rod thru the main jet to unclog it and be the same size as the other jets. Went back out for a test run and it ran almost perfect at 5500rpm more or less.
After using the engine once more after this it ran fine for a couple of runs then it went back to the same similar problem as before but this time it was on carburetor #4 and it had a white almost rock stuck right on the main jet. Cleaned it out once more. And this time i added and external fuel tank and installed a second filter inline. Also changed out the water/separator and small filter in the engine. And blew out the fuel lines. Basically everything in the fuel system is new.
Went back out again and this time it ran really good and smooth all morning. No issues. But almost before leaving and after a short WOT run i started noticing it was running a bit rough on low speed. Right around 2200rpm but it runs good at higher speed past this. So this is to the point im at now. And now its on cyl. #2. Looks like the low speed passages now got clogged up.
Why does it keep clogging up like this? Even after running on a new clean tank with clean fuel? Can the metal of the carburetors be falling after itself inside. ???
Sorry about the long post. If anyone has any suggestions please share. Thanks.
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