Johnson GT 150 V6, How to Adjust Fuel/Oil Ratio?

[Rekd]

I've been storing a relative's boat, she lets me take it to the river when I want but I haven't been in a couple years and now I think it's burning too much oil. I'm somewhat familiar with OHV 2 strokes but not so much with outboards.

There's LOTS of (blue) smoke for first few minutes it runs, then steady smoke, more than I remember. You can see the oil in the water when it runs. The plugs are all oil fouled with small deposits on the insulator.

I don't have the manual and I don't know where to adjust the fuel/oil ratio to try and burn less oil.

Any help is greatly appreciated.

 

[DJ]

Re: Johnson GT 150 V6, How to Adjust Fuel/Oil Ratio?

You can't.

Excessive smoke is usually from:

-fouled carburetors.
-low compression.
-cheap oil.

 

[Rekd]

Re: Johnson GT 150 V6, How to Adjust Fuel/Oil Ratio?

Thanks for the reply. Could be any one of those. I'll start at the bottom and work up.

Should there be noticeable globs of oil coming out? I don't remember there being that much. (I can see about a teaspoon size pools floating down my driveway filtering into some recently cut grass.

 

[DJ]

Re: Johnson GT 150 V6, How to Adjust Fuel/Oil Ratio?

Thanks for the reply. Could be any one of those. I'll start at the bottom and work up.

Should there be noticeable globs of oil coming out? I don't remember there being that much. (I can see about a teaspoon size pools floating down my driveway filtering into some recently cut grass.

No there should not be. I think you are pretty carboned up. I would start here. Link

http://forums.iboats.com/showthread.php?t=158076

Be warned, that process WILL be messy.

Then, I would proceed to carb's.

 

[Chris1956]

Re: Johnson GT 150 V6, How to Adjust Fuel/Oil Ratio?

Check the gasoline line for air leaks. If air leaks in the motor mixes in more oil.

 

[jonesg]

Re: Johnson GT 150 V6, How to Adjust Fuel/Oil Ratio?

The vro pump should click once every 30 sevonds at idle, if its clicking faster theres an air leak in the gas line before the pump. Watch the vid.
http://www.youtube.com/watch?v=SEbW-6eOc5I