Cracked KTM tank repair

313 SlowDown
Edited Date/Time 12/9/2020 3:59pm
Hello,
I had a look on the forum searching for a working technique to repair a bad crack in the tank of my 2013 KTM Sxf 450, but I didn't find anything encouraging.
The last post is from 2017, so I'm hoping some new magic glue appeared on the market in the meantime.
As you can see from the picture, the crack is where the tank is bolted to the frame.
This weekend I'll try to fix it with the help of a fiberglass based marine putty, like you see in the (italian) image.
Does anyone has a better solution?
My only current alternative is a used EXC tank as I can't find an SxF one, but of course the look is different
If someone has a used SxF tank, you're welcome to make me a quote.
Thank you



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GoggleFiend904 12/3/2020 6:07am
12/3/2020 6:07am
Buy a new one, I’ve had that happen to two oem tanks for my 14, nothing I tried would last longer than a couple hours.

I also believe it happens from over tightening that bolt.
Rickyisms
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Rickyisms 12/3/2020 7:54am
12/3/2020 7:54am
I tried a couple methods and they all ended up leaking shortly after again.
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313 SlowDown 12/3/2020 10:27am
12/3/2020 10:27am
Have to admit I anticipated your answers. Anyway I will give a chance to the putty and get back to you with the results.
Thanks
debun
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debun 12/3/2020 12:45pm
12/3/2020 12:45pm
You can plastic weld it. I don't think there is an adhesive known to man that will work on plastics in the polyolefin family. I searched long and hard and concluded on plastic welding.
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Paw Paw 271
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Paw Paw 271 12/3/2020 4:16pm
12/3/2020 4:16pm
Plastic weld may work if you can get to the spot, which does not look promising from the photo.
You will not get any seal to hold as they are petroleum based as is gas.
I would plan on doing a tank replacement.

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mx317
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mx317 12/4/2020 6:21am
12/4/2020 6:21am Edited Date/Time 12/4/2020 6:21am
Flexseal! Just kidding, I would be looking on eBay for a tank.
Cammy41
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Cammy41 12/9/2020 1:48pm
12/9/2020 1:48pm
I did the same thing and nothing worked i ended up with another tank
313 SlowDown 12/9/2020 3:59pm
12/9/2020 3:59pm
So, I did the repair as intended and partially filled the tank without apparent leaks, but I know it’s too early. Still have to test the result on track as the weather here is miserable.
Will post an update when I ride it, guess in around 10 days looking at the forecast

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