...and appears to have led to damage in the fuel injectors on my (nearly new) yamaha 200's. I have a '92 25ft Sailfish which I repowered last year with twins. While the fuel lines were replaced from the filters to the engines they were not replaced on the other side of the filters back or to the fill valve. I reached the conclusion that this is the issue after having my starbard engine sputter repeatedly even after changing fuel filters on three consecutive trips. I confirmed the rot in the lines by sticking a clean rag inside only to have it come out of the lines with black slime and particles just as what I see in the bottome of fuel filters.
Does my theory ring true with anyone else? I know that people are experiencing this type of rot with older fibreglass fuel tanks (which mine is metal) but I have not heard about the fuel lines also rotting in this fashion. I will have a mechanic look at the fuel injectors and see if they are truly damges or if it is the screens that simply need cleaning but I am wondering if anyone has an opinion and some direction on replacing the lines? I am thinking that if i replace the lines and simply pump out the fuel tanks (as oposed to replacing the tanks or even pulling them to clean) even if I have to do it a few times to get all the particles debris out that it will be enough. Does anyone have any thoughts or advice on how I should go about doing this myself and what tubing if any you have found to be the best material to prevent future rot. I welcome all thoughts (good, bad or ugly)
Does my theory ring true with anyone else? I know that people are experiencing this type of rot with older fibreglass fuel tanks (which mine is metal) but I have not heard about the fuel lines also rotting in this fashion. I will have a mechanic look at the fuel injectors and see if they are truly damges or if it is the screens that simply need cleaning but I am wondering if anyone has an opinion and some direction on replacing the lines? I am thinking that if i replace the lines and simply pump out the fuel tanks (as oposed to replacing the tanks or even pulling them to clean) even if I have to do it a few times to get all the particles debris out that it will be enough. Does anyone have any thoughts or advice on how I should go about doing this myself and what tubing if any you have found to be the best material to prevent future rot. I welcome all thoughts (good, bad or ugly)