Exhaust Smoke - 1988 120 HP Evinrude Engine

Jim De

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Jul 24, 2011
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This might be a silly question considering I am inquiring about an engine that is 23 years old. The engine runs great, lots of power, idles fine...however, when I start it, an unbelievably large cloud of smoke comes out of the exhaust.

The VRO has been disconnected. I used to use pre-mix, but that is no longer available where I boat, so now I add a quart of TCW3 for each 12 gallons of gas. It smoked just as much when I used the pre-mix as it does now.

Any suggestions on how I can reduce the smoke? Can I use a little less oil say a quart for every 14 gallons instead of every 12 gallons without damaging the engine?

It is very annoying to boaters nearby when I start the engine and they become engulfed in a cloud of smoke. Thanks for any suggestions.
 
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