I always heard that Kreem fuel tank liner will come apart and that it will end up in your carbs. Case and point, this is a pic from a 1970 Triumph Bonneville that came in the shop because it was running poorly. If you need to line your fuel tank, use Kwik Poly or Caswell
Remember back when there was no ebay? When you would actually have to leave the house to physically go pick parts. You would have to dig around in milk crates, decipher between the right and wrong part, and if you were lucky find what you were looking for.
Here's a pic of my 49 Indian Scout. I have no time to fix it, but one day i'll get around to it. Then it's for sale