Fuel Tank Repair

6 replies to this topic
  • Order66

Posted December 04, 2013 - 08:13 PM


I'm looking for recommendations for repairing a cracked fuel tank on my '02 wr426. It's not a large crack. At first I didn't even think the inner wall (if there is one) was cracked but after a day's ride there was a little bit of leakage. Can it be repaired or do I just need another one? Thanks for your suggestions.


Sorry if this is the wrong forum.

  • Sqwid

Posted December 04, 2013 - 08:16 PM


You can pick up a plastic weld kit for cheap from harbor freight. Works good


Posted December 04, 2013 - 08:29 PM


I have yet to see a plastic weld, any glue, any epoxy, or sealer work fixing a plastic fuel tank. All are unfortunately only temporary

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  • Shoodong

Posted December 04, 2013 - 08:37 PM


JB weld would work make sure your tank is bone dry before you put it on and clean the crack out. Or use some silicon.

  • thejunkman

Posted December 04, 2013 - 08:39 PM


3m DP8005 however it is more of a structural adhesive for low surface energy plastics not really a sealant, but it will bond to the plastic.

  • 1987CR250R

Posted December 04, 2013 - 08:52 PM


Plastic weld works but is tricky to do.


Posted December 05, 2013 - 06:10 AM


Nothing works! I had a Yamaha tank which I tried everything on. Welding, to JBweld. The only thing that worked a little was SealAll. It would last a couple weeks, before having to peel it off, and re-do it. Gasoline, and especially alcohol eats through anything you can stick on,and in the area. Welding just re-cracks, because the fuel tank flexes as you ride.

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