1986 WR 400 gas tank preservation

I have a fairly clean gas tank. The California fuel additives have done a number on the tank and has discolored it. Is there a way to clean up the discoloration or can someone recommend a way to seal and paint the plastic tank?

I have a '85 CR500 which has the same problem....

The tank can not be cleaned from the outside as the plastic is tainted all the way through.

So I have come to the conclusion that the tank needs to be sealed (this wouls stop further 'bleed' and then sprayed with a plastised (if I have spelt that correctly) paint to bring the surface back to original.

Tank Sealer (UK but might ship or tell you where to get it in the US):

http://www.tankcareproducts.co.uk/

Paint: Either a paint shop or http://www.caswelleurope.co.uk/krylon_fusion.htm

I know Krylon is available on your side of the pond.

I haven't got round to doing my tank yet so I can't show you any pictures but I might start that soon.

Hope this helps.

Stu

This best and final way to fix this problem is have the guy on E-bay or Joe Abbates cycle therapy seal the inside of the tank with a special process that won't let gas fumes pass thru-a tank within a tank. The guy on E-bay charge $300 to do the process,I know it takes a week for the inner liner to cure.He then paints the outside and puts on decals. The other good thing about this process decals will no longer bubble. I have it done on my YZ465 tank and think it's the best looking tank ever.