What's this part (w pic)

[toonces]

2011 700 Grizz here and I'm wondering what part goes in the hole in the middle of this pic...

1718110657

Is it this part?...

http://www.partzilla.com/parts/detail/yamaha/YP-90480-01558-00.html?gclid=CICok8uHjccCFQqQaQodDJQEbg

Seems like something more should go in there to plug up the hole. If it's just the grommet great, I'll order it and be done. But it there's something more that goes in there a pic would be much appreciated.

[toonces]

Well, after looking at this a little bit more it looks like the nub on the hinged gas cap cover would fit into the grommet when it's closed. Duh