blew my valve cover gasket today, went back home and stripped the bike down and replaced the cover. i did a research and they say that the crankcase breather wasnt breathing very good so i checked the hoses and found a vacuum hose pinched so i fixed it but no other hoses were pinched. any ideas what caused the vc gasket to blown? also, the idle is rough and the tune up was done 100 miles ago.

 

so did you check the operation of the PCV valve then?

 

no i didint how do i do it?