My '09 is a California one with the carbon canister on the left side. As I'm NOT in California, and I hate that big blob sitting there, I removed it and tied the 3 lines together as per some posts here, back in December. Wasn't venting properly so it was very hard to 'beat the suction' when trying to open for refuelling, so I re-installed the blob and at least I could open the cap...!
Got her back into Canada in April and promptly removed the blob again, but tried something different. Under the tank there are 2 nipples (one 'RED', one 'BLUE') besides the one that drains any fuel around the filler neck onto the ground under the swingarm. By blowing into each one I THOUGHT I understood their functions, so I tied the RED and BLUE together with a short piece of hose, and put it all back together.
Extremely hard to break the suction to get the gas cap open, AGAIN
, so I decided to stop fighting it, and re-installed all the various lines and the 'blob', and now the cap opens easily!
Has ANYONE removed his canister (blob...) and plumbed his lines so that the gas cap opens easily?