Re: Fuel Tank corrosion
To clean the tank, empty out the gunk, put the old fuel pump back in, buy about five/six gallons of the cheapest white vinegar and fill it up to the brim. Add salt (1/4 of container) and let it sit for five days. On the fifth day add baking soda and enjoy the lava show (keep adding every time the lava reaction stops). After all the gum and crap ooze out, (because of the baking soda) clean the tank out with water then gas then dry gas as fast as you can (this process usually take me a couple of hours). Do not let it sit when you are done or you will get flash rust within minutes. Add two stroke oil/gas mix and make sure to swirl and coat the entire inside of the tank and let dry (this keeps the rust from coming back). If the tank is bad, you will know, the acid will eat through all of the rust and reveal any structural problem with the tank. Put the new used fuel pump back in and add some gas. Add some power to the pump and analyze the condition of the gas coming out. If the gas is clear and clean like it was put in you are good to go. If not, you will need to continue to recycle the clean portion of the fuel back into the tank to pump it out again until it hopefully clears up. If it doesn't want to clear up, you can add an in-line filter or just buy another pump...
Or if you like to work hard, you can get a can filled of bolts and nuts, put them in the tank and spend the next fifty hours of your life shaking the bolts and nuts around in there to scrape off all the rust and corrosion.
Last edited by Sabotage; 12-09-2017 at 10:36 AM.