In-line fuel fitler

[rib4charter]

My vst tank filter is getting clogged after 20 to 30 gallons of fuel runs through it. I think there is some sort of material that is getting past the water seperator filter and the gas filter on the yamaha engine. The VST screen is more of a mesh filter so the particles are getting pooled there. Once you get a little deposit, everything else just keeps building on top of until until the fuel flow rate won't allow the engine to throttle above 3/4 throttle. It is a pain to take apart the vst tank, and I want to know if there is a inline fuel filter that I can install that will filter out the smaller micron particles that are making it through the water seperator filter and the inline gas filter on the engine?

 

[shy]

Re: In-line fuel fitler

Pardon my ignorance, but I don't know wnat a vst filter or tank is. However,
you do not mention if your water seperator also has a filter. If not, you should
have one inline with the fuel line to the engine. The filter should also be at least 10 micron. I saw an improvement in engine performance when I installed this kind of filter. However, for some undetermined reason, my engine stopped running altogether. I replaced the 10 micron filter, which had less than 50 hours on it. The engine still ran poorly, but I suspect a fuel starvation issue.
I stripped the carb on my T9.9 Yamaha and made sure the two jets were open.
I may have missed some dirt, because the problem is still there. My next step is to insure that the filter in the 6 gallon tank feeding my engine is not blocked.
My last resort is to remove the carb and soak it in a cleaning solution. I know the engine is having a fuel problem because it will run for a short while when a starting type fluid is sprayed into the air intake. If you are using gasohol, be sure to put preservative in the gas because that kind of gas goes bad quickly.

 

[rib4charter]

Re: In-line fuel fitler

I have an racor water seperator filter along with the fuel filter on the engine. This stuff is getting by both.

 

[mommicked]

Re: In-line fuel fitler

I am no expert! but i have heard that some older rubber fuel lines dont like alcohol/ethanol,and it can eat at them. if hoses are between the filters and engine then that might be the problem.just a guess.i was told to cut or remove a hose and see if it was soft inside or you could easily scatch or wipe off the lining of the hose.if so replace the lines w new ethanol friendly hoses.can anyone confirm this??