Quote:
Originally Posted by ChopperCharles
The stock filter is also extremely restrictive. The end cap of the filter is almost an interference fit with the outer casing, vastly restricting fuel flow. That’s why it was so difficult to blow through. I’d post pictures but the forum is broken. Pics on advrider thread if you want to see.
Charles.
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I'm thinking that perhaps the water in the fuel caused the filter media to swell up and expand the metal end cap enough to choke off your fuel flow at high RPM's, leaning out your fuel mixture and melting your catalyst honeycomb; alternatively you may have just got a poorly manufactured filter. It would be an interesting comparison to cut open a brand new, unused filter and contrast the internal condition to your used one, checking the fit of the metal end cap and its diameter versus your bad one, as well exposing it to some water and see how the adhesive behaves.