The title says it.; I realize this is a no-no. But sometimes it would be useful to tilt a mower on either side depending on what one is trying to fix. From what I have read, the problem is that oil flows from the breather hose into the airbox and even into the combustion chamber if tilted muffler up/air box down. Wondering if this can be prevented by clamping the breather hose? That hose is relatively easy to access on most engines.