Does '98 Johnson 150HP Ocean Runner have variable ratio oil injection?

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,109
I am looking at the subject motor. I believe it to be 60 degree, loop charged V6. Does it also have oil injection that varies the gas-oil ratio, or is it a fixed ratio injection?
 
D

DJ

Guest
Re: Does '98 Johnson 150HP Ocean Runner have variable ratio oil injection?

Fixed at 50:1.
 

seahorse5

Rear Admiral
Joined
Jan 24, 2002
Messages
4,698
Re: Does '98 Johnson 150HP Ocean Runner have variable ratio oil injection?

Chris1956 said:
I am looking at the subject motor. I believe it to be 60 degree, loop charged V6. Does it also have oil injection that varies the gas-oil ratio, or is it a fixed ratio injection?


Since 1992 the "VRO" which is correctly called an OMS (oil metering system) has a small ration change from idle to full throttle.

It actually delivers oil at about a 75:1 ratio at idle to 50:1 at higher speeds. On average, most users will see close to 60:1 depending on their running speeds overall.

This link tells the whole "VRO" story without the myths and half-truths of the uninformed.

http://continuouswave.com/whaler/reference/VRO.html
 
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