If no rust or sediment, why go to the trouble of cleaning it? If the OP means he looked in and very old gas was in the bottom and turned to varnish, just pull it, put in a bit of fresh gas, let it set a while then slosh it a bit and dump.


RonR


1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5