Tracing a fuel issue, and looked to the usual culprit; the anti-siphon valve. Unfortunately, it's been in there for a bunch of years and while removing it, it snapped it off at the base. I'm wondering if it's easier to just pick up a new fitting and pickup tube, rather than messing with it too much and risking buggering it up anyways. It's too big for my extractors. You'd think this would be an easy part to locate, but I can't find them anywhere.