On close contact, it easily blew the gunk loose. I also used a Campbell Hausfeld air nozzle tool to reach down inside.I used a retrieval tool (because it's spring-like and flexible) down through the float hole to knock loose any extra thick stuff.The varnish turned into a dry layer of flaky scum that was easy to knock off the inner surface.I left the fuel level sensor out for several days so the tank would completely dry.The petcock pick-up tube filter screens were covered with the nasty gunk and had to be cleaned. I have the rear tire off, so that helped, too. The entire petcock assembly does indeed come out from the bottom by snaking it to one side of the swing arm.Neither vinegar nor carb cleaner nor fresh gasoline did a thing to it. I soaked the flakes in little containers for awhile. I decided to test different solvents on that varnish/precipitate before doing anything.
#The gunk find another way in plus#
I have seen that stuff clean up some pretty nasty tanks to useable, not necessary to seal level of useage PLUS vinegar is easier on the paint so totally useable with the tank still on the bike. Just completely drain the tank and top the tank off with a few gallons of the vinegar and let it set a few days. If that gook turns out to actually be just dried/laqured fuel and we are not talking rust here, I would use good old cheap and safe/simple to clean up White Vinegar. Have used many other methods but Red Kote is the best of the best and I wouldnt waste my time with the other stuff, again, IMHE. If this is the case, you will have to remove the tank, hit it with muratic acid, neutralize and rinse out the acid real well and then seal it with Red-Kote tank liner. If we are dealing with actual rust = sealing of the tank is mandatory. That said, what I would do first thing is, if you can (never owned a 2nd Gen), stick my finger in the filler hole check the ceiling of the tank for actual rusting - if the ol finger thru the filler cant work = dental mirror and a flash light.
#The gunk find another way in code#
IMHE (inventing some new Code verbage here = In My Humble Experience), rust is not magnetic.
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