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Ron Knapik Ron Knapik is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 45
Default 1992 70HP Johnson Oil Mixing

Older technology 2 strokes do smoke a little. Stay with the 50 to 1 mix.
Use a better oil, such as the Evinrude Johnson XD 50. Make sure the engine
also has the right propeller on it so the engine comes as close to mid
operating range as possible.

Ron

"LOP" wrote in message
...
I finally gave up on this engine smoking. I could not get the oil injection
system to function correctly.
So I have pinched off the oil supply line and am now mixing the oil with
the gas. At present I am using a 50 : 1 ratio but there is still a little
smoke. The engine is on a 24 foot patio boat and is rarely running above
2000rpm.Do you think that it is safe to go to a 100 : 1 mix?

Thanks, Don and Liz



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