Rust in my gas tank, remedy?

Best Remedy: A replacement fuel-tank, rust-free purchased on eBay.

Once you have a new tank on the bike, KEEP IT FULL! Rust forms in motorcycle fuel tanks because motorcycle fuel tanks do not have the rust-inhibiting coatings on the inside that automobile fuel tanks do. When the temperature drops at night, condensation forms on the inside of the fuel tank's walls. The emptier the fuel tank is, the more surface area inside the tank for condensation to form and the more water in the bottom of the fuel tank (since water sinks in fuel) causing more rust. When the bike is parked with the fuel tank full, less moisture can condense inside the tank to form rust.

There no "EASY" fix. If the rust is flaking off inside the tank, you'll have to remove the gas tank from the bike and use one of several available methods to remove the rust. Then get some gas tank sealer and thoroughly seal the inside of the tank before you put it back on the bike. Replace the fuel filter(s) and hope for the best. If rust got past the filters and pump, you may have a problem with the fuel injectors too.

There's probably a few good videos on you-tube or other web sites that will show you how it's done.

Good Luck!

If it is running fine at speed and under a load rust is not your problem - there is a fine mesh filter that would catch the rust before it hit the injectors. Your symptoms for a blocked fuel filter would be very poor performacne at WOT (wide open throttle) under a load with lots of hesitatintg and missing - but it should run fairfly well at idle or with little throttle.

Check the fuel filter first but the best way is to unbolt the tank from the bike and flush it out with fresh gas to answer your question. Before all that though I would siphon out the old gas and put in new.

Yamaha sells a great two part gas tank rust remover. It works well and will not ruin your paint job if you spill some. DO NOT use Kreem. it's good for a while but will flake off eventually.

For there to be rust there had to be water/moisture to being with. That water can and will foul the injector(s). Take the bike to a nearby service rep for fixing, contact the sales rep for 'back-charge fees'.

There are more than a few tank sealer products that include etching chemicals and a gasoline proof coating to seal the inside of the tank .

It's not particularly easy but it will do the job .

http://www.kbs-coatings.com/large-cycle-tank-seale...