i was looking at K&N's on the net and called around and i couldnt find one cheaper than $30 so i went to my local auto parts store and got me a valve cover breather K&N for $15. looks just like the K&N's they sell for the 50's and works great! just thought you guys might like to know a cheaper way.

 

Got the same thing on my ATC70. You can even get them with chrome.

 

you removed the whole plastic box piece with just the filter ? any fuel adjustments needed?