1olbull
Riding Motor Since 1950
DOH!!..I thought I covered that part. My humblest apologies to everyone.
You have to drain it and rinse out all of the gas with water first and leave the gas cap off if you are going to use the heat/cold method. I sorta figured that was SOP for using any type of heat around any fuel tank.
BTW... I have seen people using a cutting torch near a gas tank on a vehicle before. And IMMEDIATELY backed WAY away! I guess some people don't realize that fuel vapors in a gas tank with sufficient air mixed with them will make a fairly good sized explosion if ignited properly, and the exploding gas tank will shower everything with burning fuel within a heck of a long distance.
Had a not so bright neighbor that lived about a block from me in 1olbull's town (Tacoma. WA) that was going to try to use an old poorly running gas powered compressor to paint a car inside an old garage a long time ago. Lucky for him someone stopped him and kept him from possibly blowing himself up.
So please be safe out there folks.
Thanks for your reply! Tis obvious to me you are aware of the potential hazards.
In my yute, I watched my father (from afar) many times repair MC tanks in his Indian MC Shop.
Even a "washed out" tank can ignite. He found filling the tanks with sand worked the best when using a torch.
Just sayin' . . .