Leaking Gas Tank - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 4 (permalink) Old 07-09-2019, 01:05 PM Thread Starter
Grand Prix 125
haharel's Avatar
Join Date: Apr 2019
Posts: 38
Leaking Gas Tank

So some idiot in a 4runner backed into my bike and decided to run. Thanks to the witness for coming into my work office at the time to inform me (wish he grabbed the plates).

With that being said, I have fixed all the cosmetics that were damaged but now I see that shes leaking gas. The tank is leaking from the sides of the rear mounting plate shown in the picture.

Any suggestions as to what you guys think would be the best option for repair?
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post #2 of 4 (permalink) Old 07-12-2019, 12:27 AM
Production 125
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Join Date: Jul 2019
Posts: 6
This is exactly what happened to mine when it got reversed into.

You need to seal the inside of the tank. I used KBS gold standard tank sealer kit. It comes with 3 components. A cleaner, an etcher and a sealer. It will plug up any leaks you have and will treat your tank from any rust or corrosion and protect it for 10 more years. Be careful though, the sealant is bulletproof and will latch on to anything it comes into contact with.
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post #3 of 4 (permalink) Old 07-12-2019, 01:12 PM
Supersport 400
Main Motorcycle: 2000 Triumph 955i S3
Rayvin's Avatar
Join Date: Jul 2010
Location: Fort Myers, Florida, USA
Posts: 86
Originally Posted by haharel View Post
Any suggestions as to what you guys think would be the best option for repair?
I've used Caswell tank sealer expoxy (thanks to recommendation from DeCosse) successfully on the tank of my 2000 S3 955i. It's the nylon compound tank, but it's supposed to work well on the metal ones as well. Well worth the 45 bucks for the kit. Get the larger kit if you do, as I used the whole large kit to coat my tank and it needed it. A lot of surface area, at least in my particular tank.
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post #4 of 4 (permalink) Old 07-12-2019, 09:44 PM
Grand Prix 500
Main Motorcycle: 2004 Daytona 955i
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Location: Sydney, Australia
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Other Motorcycle: 2006 1050 Speed Triple
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I'm surprised the tank is leaking there. The support bracket is (presumably) spot welded to the tank itself so it must have taken quite a hit to 'tear' one of the spot welds but the tank doesn't seem to exhibit any damage. What a bummer. Nice red/white paint job too - same as mine but mine is one of the last plastic (nylon) tank models.
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