I have a 2013 YZ 450. I am curious about the breather hose that comes off the valve cover and runs all the way to the bottom of the engine. I ride single track and at the dunes. Recently when I took the valve cover off, I notice sand had been coming up the breather hose. My question is: Does that hose need to be that long? I would like to cut it off shorter and put an UNI filter on the end of it. Is there any reason I should not do this?
Thank you for your input