Hi Tim, I just checked my sticker on my 2001 Yamaha 4hp 4 stroke. It says that you can damage the engine from leaking oil if the engine is not transported in an upright position or in a horizontal position with the handle on the bottom.

This could be one reason it was leaking oil. just a thought.

Thanks Al...I noticed a similar sticker on mine. It has been both upright and on the handle side when off the boat. I can't imagine why oil would leak from a four stroke.....except through the intake. Tim D.

al williams

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