GraeV11 Posted September 11, 2012 Share Posted September 11, 2012 I avoid fuel that contains ethanol. My tank is getting increasingly 'crinkly' as per the picture attached. The paint is fine. Not sure how I stop the sag. Ideas ? Link to comment Share on other sites More sharing options...
gstallons Posted September 11, 2012 Share Posted September 11, 2012 An aluminum fuel tank will cure every problem you have. Other than that............you will have to endure this . Link to comment Share on other sites More sharing options...
Bbennett Posted September 11, 2012 Share Posted September 11, 2012 Looks like pesky Ethanol damage there. Is there a source for aluminum fuel tanks for the V11?? Link to comment Share on other sites More sharing options...
gstallons Posted September 12, 2012 Share Posted September 12, 2012 Oh yeah..........there is at lesst one member that has one. It came from The Tank Shop, in England ? Link to comment Share on other sites More sharing options...
GuzziMoto Posted September 12, 2012 Share Posted September 12, 2012 Not sure why you would blame ethanol if he said "I avoid fuel that contains ethanol". Possibly a defective tank, or maybe there is something else in the fuel that would do that. Ethanol is not the only thing being added to gasoline nowadays. As far as what to do about it, there have been a few people, myself included, that have drained the tank, let it thoroughly dry out, then sealed it with a tank sealer like Casewell epoxy tank sealer. I don't know how others have turned out but the one I did is working well so far.... Time will tell. There are at least two people making aluminum tanks, but one is in the UK and the other I think is in Europe. One thing to consider is I have heard there are short tanks for the red frame bikes and slightly longer tanks for the rest. Not sure if that is true (I only have the wifes red frame version) but it makes sense. Link to comment Share on other sites More sharing options...
GraeV11 Posted September 12, 2012 Author Share Posted September 12, 2012 Not sure why you would blame ethanol if he said "I avoid fuel that contains ethanol". Possibly a defective tank, or maybe there is something else in the fuel that would do that. Ethanol is not the only thing being added to gasoline nowadays. As far as what to do about it, there have been a few people, myself included, that have drained the tank, let it thoroughly dry out, then sealed it with a tank sealer like Casewell epoxy tank sealer. I don't know how others have turned out but the one I did is working well so far.... Time will tell. There are at least two people making aluminum tanks, but one is in the UK and the other I think is in Europe. One thing to consider is I have heard there are short tanks for the red frame bikes and slightly longer tanks for the rest. Not sure if that is true (I only have the wifes red frame version) but it makes sense. Thanks. A project for the winter months I think. A new shiny alloy tank is quite hard to sneak past the wife. She would have other ideas for the ££££ it would cost. Link to comment Share on other sites More sharing options...
ponti_33609 Posted September 12, 2012 Share Posted September 12, 2012 If money is not an issue, I have been very happy with the change. Bob Link to comment Share on other sites More sharing options...
docc Posted September 13, 2012 Share Posted September 13, 2012 On early Sports, the tank does tend to sit down hard at the rear and ride in the side covers chafing and spreading the tank. Fitting a stack of fender washers under the rear tank mount can lift enough to relieve this pressure and stop the spread. Not likely that will address the damage already done. Link to comment Share on other sites More sharing options...
GuzziMoto Posted September 13, 2012 Share Posted September 13, 2012 It certainly is possible that there is a fitment issue. His bike appears to be a later black frame bike, but there could still be some sort issue with regard to how it is fitting on the bike and resolving that (if present) could help. Is the tank sitting on the tank freely or is there any pressure being applied to it? Link to comment Share on other sites More sharing options...
GraeV11 Posted September 13, 2012 Author Share Posted September 13, 2012 It certainly is possible that there is a fitment issue. His bike appears to be a later black frame bike, but there could still be some sort issue with regard to how it is fitting on the bike and resolving that (if present) could help. Is the tank sitting on the tank freely or is there any pressure being applied to it? I took the tank off earlier this year to replace the oil return pipe. It dropped back on without any pressure being applied. I will pull it again this weekend and see if the same applies. I wondered if it is my riding style - I tend to grip the tank between my legs rather than hang off at corners- the damage is the same on the other side in the same place. The damage seemed worse after last weekend when I had completed a 750 mile trip in 90 degree heat. Link to comment Share on other sites More sharing options...
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