Every time I fill up with gas I have a gas leak from around my gas cap while I'm going down the road. Gas leaks out all over my tank and blows on me and the right side of my bike. The rubber seal looks good and feels pliable. I make sure the cap is on tight and have even sprayed the rubber seal with silicone. I am planning to replace the gas cap but was wondering if this could be a problem with a clogged vent or something as the glass on the front of the speedometer appears to fog up also as if gas fumes are coming up through the tank dash. Anyone ever have this problem? I don't want to buy a new gas cap if that is not the problem.

 

The moisture in the speedo is not unusual, the gas issue is not normal.

Are U filling the tank all the way to the top,? if so U might try leaving a 1/2" or more below the filler hole to see if that helps.

Also I fill my up on the jiffy stand, then replace cap.

https://www.hdforums.com/forum/softa...r-fill-up.html

might look through some of these also..
https://www.google.com/search?source....0.aRowxoNc4Y4


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Try the vent and check your crossover line.

 

when you fill up the bike is on its side, when it is upright it rises, i leave plenty space and reset my odometer

 

Sounds like you might overfill a little?

 

After filling the tank up my rocker would seep a bit of gas out from the cap area. I stopped at a harley shop told them, they handed over a new cap and the problem was solved, never leaked again.

 

Yup, new cap fixed my Sportsters with the same issue.

 

2012 Heritage was leaking under speedometer , Harley replaced the tank paint came off under leather . Great bike .

 

I have to push down on my cap when I tighten it, or it does the same thing.