Yesterday cleaned and "rust blasted" the tank for the Rumbler 500. Then dried it well and thoroughly, but waited until today to apply the sealer. Taped up the various orifices and dumped in the sealer after mixing it thoroughly. Then I sat at my desk doing things I didn't need my hands for (watching some videos from Royal Enfield's channel) while continually turning the tank in my hands. Front to back, top to bottom, side to side, etc, etc, etc, etc... After about an hour I took it downstairs and opened up the fuel pump hole which was the most likely to allow drainage. But it didn't. It would appear it's on a high point in the tank, go figure. Now, before taping it up and dumping in the sealer and such, FIRST I rubbed it all over with paste wax and left it on there nice and thick, then wrapped it in plastic kitchen wrap. So before opening up the pump hole I first cut the wrap, taped it all nicely with masking tape and THEN opened it up, exposing only the hole itself. I taped the small hole first and then taped over the base plate. So when opening I removed the base plate tape, filled in the bolt holes with past wax and THEN opened it. Since it wouldn't pour out I held it on its side and used the paint brush they'd included in the tin (a cheapo made in China brush it looked like) to dip the paint out and scraped it so it would drip into the sealer container. I continued on until It appeared that I'd sopped up as much as possible and was not leaving TOO much to fill in where the brush had rubbed against the tank. Then I carefully wiped the small hole and reapplied tape to seal it off and rolled the tank around some more, making sure to give the area where I'd used the brush to sop up the paint a chance to recoat itself. From the looks of the container it takes about 1/3 of the amount they include to properly coat the inside of the Rumbler's 5 gallon gas tank. I went back up to the office and placed a spare chair next to my office chair and set the tank on it, then changed the angle every now and then. I did this for another hour or so until I figured it had probably set up well, then pulled the tape off of the sending unit hole and the pump hole, leaving the filler hole taped. Looking inside it looked well coated, including the area where I'd sopped up the sealer. I set the tank up so that any sealer still in liquid for would run to the top front of the tank where if it DOES develop any pin holes they are unlikely to cause an issue due to lack of frequent contact with the gasoline. Then I set a fan to blow across the holes and hopefully speed up the drying process a bit. After lunch I removed the plastic wrap and the tape on the filler hole and polished the tank up good. Then set the rubber grommets in and set it on the bike to continue curing for the next several days. They say at least four, it'll probably be six at least before I have time to mess with it again.
After getting the tank polished and temporarily placed back on the bike I grabbed a syringe and drained the brake fluid from the reservoirs, front and back, and refilled with fresh. Didn't have a wrench down there to properly bleed the brakes, but it's at least got fresh fluid for now. Need to take a wrench down and finish the job.