Re: Burning oil and leak down test on the Shed
That pipe was I'm assuming was the crankcase breather. Is the airbox excessively oily? I have heard of air being forced past the worn piston rings during the compression stroke thus pressuring the crankcase. Then oil and air out of the crankcase breather into the airbox or indeed where the pipe is hanging. This also puts fuel into your oil which isnt good for the engine. Just speculating though.
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