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Vince Vince is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 2
Default 1992 70HP Johnson Oil Mixing


"Billgran" wrote in message
...

"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,



The following link has an explanation and a cutaway of the oil injection
system along with the true story dispelling the "urban legends" about it.

The oil injection system operates the way it should if there are no air
leaks in the fuel system or any restrictions. All the tests and procedures
are in the late model service manuals.

Bill Grannis
service manager


It's a half-assed system (VRO) an not worth the risk to run.

Best to use Amsoil and run at 100-1