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Old 12-01-2012, 12:52 PM   #13
JRWooden
Beastly Adventurer
 
Joined: Jul 2008
Location: The great state of confusion
Oddometer: 4,204
For a while I thought it might be the canister system ... but I then found out that even the Eurozone bikes still have the 2-way check valve in the vent line that is used to control the flow of vapors in the canister system...

If the inner liner (exposed to ethanol) swells it would then put tensile stress on the outer plastic "shell",
and that "ridge line" where everyone's tank tends to crack is a natural stress-raiser....

I'm open to other possibilities, but haven't really heard any that make sense...........
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