Moki did not use gaskets, sealant or leak.

My early DL50 serial # 173 or 178 can't remember, does not leak. It did come thru with a plugged high speed carb orifice, off center machined prop bolt and prop driver with .0075 run out. Replaced the defective parts and it runs strong.

How they machined the bolt off center is a mystery to me. The prop driver was a very loose fit on the shaft and filled with bearing locktite or ca.