August 2, 20224 yr My vent hose from my tank seems to leak really often. Doing any riding it’s been pouring over my bike. I’ve tried routing it different ways to stop it with no luck. Is something broken?
August 2, 20224 yr Try a clear vent line. Believe it or not, my 2016 Evo gas cap vent was actually auto siphoning. It had a clear vent line and you could see alternating bubbles and gas coming up even when stopped after running. I was pointed to a posting that I can no longer find describing the issue. I disassembled, cleaned, reassembled and the issue was gone. I had to be quite brutal to pry the cap apart and thought it was going to break it but did not. IIRC there were 2 springs and 2 valves in the cap. It was clean inside with nothing obviously wrong. I'm guessing that some of the little parts got out of position created the situation. There was a recommendation for a CSP cap but at the time they only fit 2018 and later.
August 2, 20224 yr Author 9 hours ago, mcman56 said: Try a clear vent line. Believe it or not, my 2016 Evo gas cap vent was actually auto siphoning. It had a clear vent line and you could see alternating bubbles and gas coming up even when stopped after running. I was pointed to a posting that I can no longer find describing the issue. I disassembled, cleaned, reassembled and the issue was gone. I had to be quite brutal to pry the cap apart and thought it was going to break it but did not. IIRC there were 2 springs and 2 valves in the cap. It was clean inside with nothing obviously wrong. I'm guessing that some of the little parts got out of position created the situation. There was a recommendation for a CSP cap but at the time they only fit 2018 and later. Ok didn’t know you could pull it apart. Or that it did anything. Maybe I’ll try that with mine I’m guessing something has gone wrong if it’s got moving pieces in it
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