[1bigrn]

I just pulled my airbox and my plan is to open it up similar to the crf450r airbox. When I removed it I found two approx: 1/2" rubber hoses going to the box. I would assume atleast one is from the crankcase.
How do I go about eliminating them?

[JimDirt]

I believe this is what your looking for , if your wanting to keep clean air venting in the engine

http://www.crfsonly.com/catalog/product ... ts_id/1046

http://crfsonly.com/reviews/applied-rac ... review.php