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Nissan Marine 6 HP Oil on the plug while running

Artloft

New member
Starts OK and will run for a bit even under load, then will load up on what I assume is oil as there is a cloud of smoke. Then it will either quit or if given full throttle will spuuter back to life and run for a bit more. It was starting to leave a slick but there was no trace of oil under the cowling.
 
Assuming you have some kind of 4-stroke (you did not mention your model). Either the oil is over full, or you may have leaky valve guides... or a bad ring.
 
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