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Old 08-24-2012, 06:45 PM   #23
JRWooden
Beastly Adventurer
 
Joined: Jul 2008
Location: The great state of confusion
Oddometer: 4,111
So ... when you popped the tank lid did it release PRESSURE or was there a VACUUM?
Sometimes it's hard to tell....

If a vacuum, then I would say your charcoal canister is plugged or a related hose has a kink in it or your check valve is bad...
and ... (AFAIK) the bike is not equipped with instrumentation to detect that fault and record it to the computer logs...

If pressure ... well then I've got no clue .........

I carry a little "straw" from a can of WD-40 in my tool bag so that if I ever get the problem I can close the tank lid with the straw inserted and keep the tank from moving away from 1-atmosphere of pressure ... have not had to use it yet...
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