Gas coming out of the gas cap
Thread Starter
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Intermediate
Joined: Aug 2010
Posts: 46
Likes: 0
From: Texas
Gas coming out of the gas cap
I have a 2009 Fat Bob. I have a problem. Yesterday I went and filled up the gas. I always fill up but I don't top off. When it clicks, I stop filling up. While riding on the highway a car decided to come to a stop in front of me while I was doing 70 mph. I was a good enough distance away but I still had to let the brakes do the work. I stopped in time, only the first out of 4 people that weren't paying any attention to me, but gas came out from under my gas cap. It poured all over my gas tank. I had to stop and use a rag to make sure all of it was off before heading back out. Is there something I can do to stop the gas. This is not the first time it has done this. Sometimes when I fill the gas tank up, I pull the bike up off the kick stand and gas will come again. I haven't changed anything on the gas tank. Do I just need to get a new gas cap or maybe change the ring around the gas cap? Hopefully someone can help me out.
Advanced
Joined: May 2010
Posts: 93
Likes: 0
From: Abingdon, MD
I had this problem with my '09 Heritage Classic. Figured out that i wasn't tightening cap enough; was just twisting until it clicked. Now push down on cap and you can feel the seal catching. Haven't had a leak since.
Tourer
Joined: Aug 2009
Posts: 425
Likes: 0
I have a 2009 Fat Bob. I have a problem. Yesterday I went and filled up the gas. I always fill up but I don't top off. When it clicks, I stop filling up. While riding on the highway a car decided to come to a stop in front of me while I was doing 70 mph. I was a good enough distance away but I still had to let the brakes do the work. I stopped in time, only the first out of 4 people that weren't paying any attention to me, but gas came out from under my gas cap. It poured all over my gas tank. I had to stop and use a rag to make sure all of it was off before heading back out. Is there something I can do to stop the gas. This is not the first time it has done this. Sometimes when I fill the gas tank up, I pull the bike up off the kick stand and gas will come again. I haven't changed anything on the gas tank. Do I just need to get a new gas cap or maybe change the ring around the gas cap? Hopefully someone can help me out.
Cruiser
Joined: Aug 2008
Posts: 160
Likes: 0
You are not the first person who has mentioned this problem on this forum. I know gas caps go bad but yours isn't that old. Made in China? Gas should not leak out even if your bike was laying on the ground. This is an extremely dangerous issue that, considering the number of people who mention this problem, should be looked into by Harley. You are sitting on top of a molotov cocktail if that raw gas gets in contact with the red hot exhaust pipe. Try the suggestion about tightening the cap or get a new cap ASAP. People with newer bikes that have this problem should report this to Harley and to NHTSA (I think that's the agency). If enough people report this maybe it will force a recall or force Harley to fix the problem.
Thread Starter
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Intermediate
Joined: Aug 2010
Posts: 46
Likes: 0
From: Texas
Thanks guys. Yeah it kind of freaked me out yesterday. I will try ya'lls suggestions and if that doesn't work then I will get a new gas cap. I am most likely going to get a new gas cap anyways. Thanks for ya'lls help. Take care and ride safe
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Elite HDF Member
Joined: May 2008
Posts: 4,579
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From: S.E. MO
A buddies 09 Rocker did the same thing. He took the cap in and the dealer said it was a known issue and gave him a new cap.
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Stage II
Joined: May 2020
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From: Winnipeg
I have a 2009 Fat Bob. I have a problem. Yesterday I went and filled up the gas. I always fill up but I don't top off. When it clicks, I stop filling up. While riding on the highway a car decided to come to a stop in front of me while I was doing 70 mph. I was a good enough distance away but I still had to let the brakes do the work. I stopped in time, only the first out of 4 people that weren't paying any attention to me, but gas came out from under my gas cap. It poured all over my gas tank. I had to stop and use a rag to make sure all of it was off before heading back out. Is there something I can do to stop the gas. This is not the first time it has done this. Sometimes when I fill the gas tank up, I pull the bike up off the kick stand and gas will come again. I haven't changed anything on the gas tank. Do I just need to get a new gas cap or maybe change the ring around the gas cap? Hopefully someone can help me out.
Road Warrior
Joined: Jun 2014
Posts: 1,354
Likes: 766
From: north Carolina
I had the same problem with my 09 dyna. I changed the o ring and nothing changed. I noticed that even though the cap was clicking like it was tight, it was not all the way down. The bottom of the cap is fatter than the filler neck, and wont allow it to thread all the way down, and leaves a very small gap. you can remove some plastic with a file from the bottom of the cap and it will thread all the way in. Leak fixed.