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Gas Tank repair

  • Billy Mild
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Gas Tank repair was created by Billy Mild

I did a full restoration on my 1971 Yamaha AT1c 7+ years ago. It has not had a lot of miles on it since restoration. I don't ride it as much since it has had some minor issues with the carb leaking, and trying to find a suitable carb took some time. The gas tank was repaired by acid dipping and then a coating was put inside the tank. This needed to be done since it was lined before 20+ years ago. I had a leaky needle valve in the carb which is only a few months old. This usually points to sentiment in the carb bowl/gas tank. I drained all the gas out and it was nasty. Almost black. This gas is months old, but not years. 

I took some pictures inside the tank and it appears the liner might have failed, and some rust is coming back. What should I do to fix this issue? 

Pics below. 

Last edit: 14 May 2024 14:39 by Billy Mild.
14 May 2024 14:37 #1

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Replied by Ht1kid on topic Gas Tank repair

Yuck man I hate that happened to you. I would buy another tank but there are some professional gas tank coating places that might help you out. I had my 1930 Model A Roadster tank professionally cleaned and coated about 10 yrs ago and haven’t had any issues yet fingers crossed. 
14 May 2024 15:01 #2

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Replied by RTD2 on topic Gas Tank repair

I used Moyer Fuel Tank Renu for my DT1 MX nine years ago. It appears they are still in business. My result was extremely good, but it is not cheap and you will have to repaint your exterior. I know from experience that finding good used tanks is almost impossible these days.
68 DT1; 70 DT1C MX; 71 CT1C; 71 RT1B; 71 DT1E MX; 73 AT3MX, 73 MX360, 76 Honda Elsinore; 2021 KTM 500 EXC-W; 2001 Honda XR400R; 2007 Harley Davidson Sportster 1200; 2015 Ducati Scrambler Full Throttle
14 May 2024 15:14 #3

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