Hi
It's a CB350F
Air filter wasn't installed when I got my motorcycle so I'm trying to get new air filter(#2).
Then I noticed air filter spring ( #3).
Since I've never seen any picture of filter installed, importance of this spring is in mystery.
Do I really need the spring in order to install an air filter?
Does it come with the filter?
Thank you
[img width= height=]http://webservices.motorsportdealers.com/parts/partImages/HOM/2/140305/ILLUST/F1403/0514.Gif[/img]