1987 Johnson VRO70 Model # J70TLCUR

[FiddleFaddle]

Hi all, picked myself up a semi-project 87 Doral Bowrider with a matching Johnson VRO70 model # J70TLCUR. I checked compression and put muffs on it and all appears to be good, 115-120 psig on all 3 cylinders. Person I purchased it from tells me he just had it serviced and he has not had any issues. This is my first motor with the VRO oil injection, how can I tell if its working properly and would it hurt to still put a thin oil mix in the gas tank to be safe ??? Also any opinions on this motor and what to look out for. Thanks In Advance

 

[racerone]

The VRO can be tested ----Or mix at 50: 1 in your tank.----Mark oil tank level.----Run the fuel tank empty and see how much oil is needed to bring oil level up to your mark.----And does the hose for the tell tale come off the side off the engine block or off the top??----Install a new water pump impeller before you launch the boat.

 

[saltchuckmatt]

Test the vro oil alarm....and if it's working correctly than your good. Should be plenty of smoke at start up.

 

[FiddleFaddle]

Test the vro oil alarm....and if it's working correctly than your good. Should be plenty of smoke at start up.

How do you test the VRO alarm, Im assuming it works on a float or a sensing rod ?

 

[racerone]

No , it has an electronic module attached to the pump.

 

[saltchuckmatt]

Do you have system tach?