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Old 03-05-2010, 01:12 PM   #1
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Ways to clean a gas tank?

I cleand out my carbs on my bike and replaced the fuel valve and fuel strainer and now i need to get all the gunk out of the tank, it has a build-up of junk in it. I wanted to see if anyone had any good ideas on cleaning a gas tank.
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Old 03-05-2010, 01:19 PM   #2
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I used gas and put some nuts, bolts, and washers in mine and shook it. It was plastic and had rust and some really old gas/sludge. Thinking about it now it would be a good idea to use pennies as to not cause sparks?
I could be really wrong....
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Old 03-05-2010, 01:52 PM   #3
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yeah I've done that b4,, 'cept I used rocks lol
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Old 03-05-2010, 03:04 PM   #4
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any rough small object (ie, nuts, bolts, washers) will work fine. i would not use rocks, as small pieces will break off and stay inside the tank. get some gasoline or varsol and some small nuts/bolts and go to town shaking the out of the tank. just make sure the gas cap and petcock is installed and tightened down or u will spill on the paint (obviously)
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Old 03-05-2010, 03:15 PM   #5
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I've used a chain before(make sure there isn't anything in there to damage)

Then go over it w clean solve or a commercial brand no film cleaner
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Old 03-05-2010, 04:25 PM   #6
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I took the valve off the bottom and cap off the top and used a pressure washer on one bike after doing the nuts and bolts trick. I drained out as much gas as possible and put some Simple Green in and shook it around with some nuts tied together with string so they would come out easier. I then pressure washed it after letting the simple green sit for a little while in it and it turned out pretty good. Just be sure to let the tank dry out REALLY good (maybe over several days in direct sunlight) before sealing it back up.
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Old 03-05-2010, 05:17 PM   #7
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Evapo-rust... you can get it at autozone or whatever. It's like 20 bucks a gallon, but it makes the tank look brand new. just my .02
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Old 03-05-2010, 07:19 PM   #8
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this is how the old folks do it, kiddos.
take out all of the petcocks, pumps, etc.
block off all of the openings.
mix 50% water and 50% muriatic acid ( buy it for 3 bucks at the lumber yard)
fill the tank being careful not to spill it on the paint
let it sit for 3 hours
dump it all out and watch that ***** shine.
wash with soap and water
blow it out with air
squirt some wd40 in there and congratulate yourself for being a genius, when in reality you just learned from me.
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Old 03-07-2010, 12:17 PM   #9
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I used this on an old bike that let the fuel sit in the tank so long it varnished. It wasn't filled up all of the way so the rest of the tank rusted. This stuff works great! You can get it at an auto parts store and cycle gear has it, too.
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