today I did some work requiring removal of the gas tank and now as I am trying to reinstall the gas tank, the bolt holes are off by 1mm. The rear bolt for the tank is loose to allow the tank to slide back and I honestly can't figure out what is stopping the tank from lining up. Any thoughts or experience with this?
-Chris
Bikes:
2004 Suzuki GSX-R 600
2004 Suzuki GSX-R 750
2007 Aprilia Tuono - Map2, Brown Connector Mod, AF1 Link Plates, Mivv cans, Woodcraft Frame Slider, Motovision Frame Sliders, RhinoMoto Bar Ends
Ethanol
2000 Tricolor, KTM Sprag, 16/43 sprockets, D.I.D. 525 Gold Chain, Rick's Stator version 2, RP collector modified with dual link pipes, Gabro F255 EPROM, Akrapovic slip on, Ohlins radial front forks, Falco clip-ons, 16mm Brembo radial brake master cylinder, Brembo four pad radial brake calipers, BrakeTech Axis ductile iron brake rotors, Integrated LED brake lights & blinkers, Ohlins rear shock with remote preload adjuster, Longer RS125 mirrors so I can see more than my shoulders and elbows.
http://www.apriliaforum.com/forums/s...-Tank-Swelling
http://www.apriliaforum.com/forums/s...-shrink-faster
http://www.apriliaforum.com/forums/s...-tank-swelling
http://apriliaperformance.myfastforu...t&topicid=6239
And a few hundred more threads across the various Ducati, Aprilia, Moto Guzzi, KTM and other forums address this issue
Ethanol in the gas attracts water from the air, the water in the fuel is then absorbed by the nylon tank causing the tank to deform and or swell. Once your tank was off your bike it was no longer being held to size by the bolts and it "sprung", growing in your case by 1mm, which is pretty mild.
My buddy used a long crow bar to "shoe horn" the tank back on to his KTM Super Duke. Others on this forum have slotted or otherwise elongated the bolt holes at the back of the tank. If you want your tank to shrink back to its original size remove the fuel pump from the bottom so it has good air flow and put it in a hot dry place like an attic for a couple of months so the water can dry out of the nylon.
Last edited by DanV990; 04-07-2012 at 11:02 PM.
2000 Tricolor, KTM Sprag, 16/43 sprockets, D.I.D. 525 Gold Chain, Rick's Stator version 2, RP collector modified with dual link pipes, Gabro F255 EPROM, Akrapovic slip on, Ohlins radial front forks, Falco clip-ons, 16mm Brembo radial brake master cylinder, Brembo four pad radial brake calipers, BrakeTech Axis ductile iron brake rotors, Integrated LED brake lights & blinkers, Ohlins rear shock with remote preload adjuster, Longer RS125 mirrors so I can see more than my shoulders and elbows.
thank you sooo much!
Bikes:
2004 Suzuki GSX-R 600
2004 Suzuki GSX-R 750
2007 Aprilia Tuono - Map2, Brown Connector Mod, AF1 Link Plates, Mivv cans, Woodcraft Frame Slider, Motovision Frame Sliders, RhinoMoto Bar Ends
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