New Johnson...couple of questions

[csvencer]

So I picked up a 99 Johnson 175 for cheap, basically what I sold the blown yamaha for, so nothing out of pocket yet. Now I have a couple Q's. I can get her running but only with a shot of engine starter in the carbs. Once she is running it is fine. I can't her the choke solenoid (not sure if I can, used to be able to on the yamy) when I choke it from the throttles. First Q, how can you manually choke it? Is that what the red knob is by the schrader valve? Also how can I tell if she is getting enough water pressure (no pressure gauge) is there a temp the heads shouldn't exceed? Lastly, how can I check to make sure the VRO system has oil and is running? There is oil in line and in the tank, just not sure if the VRO system is pumping into the mix. I know, I know, just disconnect and run mix, I would rather not unless the system is dead.

Any help would be appreciated.

Thanks.

-Svence

[phatdaddy]

cs, not sure about the other stuff, but on the oil injection on my merc, you run the motor on mixed fuel &disconnect the oil line coming out of the vro pump and and catch the oil in a small cup. on the merc 2.0 you should get 6.8 cc (+ or - 10%)@ 1500 rpm.

[nymack66]

I try
First Q, how can you manually choke it?Yes
Schrader valve lever pointed up is manual choke move the lever in this position and squeeze the primer bulb, once running rotate it to point directly down.
Is that what the red knob is by the schrader valve? YES

Also how can I tell if she is getting enough water pressure (no pressure gauge) is there a temp the heads shouldn't exceed?
As for the pressure you will have to install a gauge ? As for running temp 175 degrees should be the max my 87 140 runs between 120/145
Lastly, how can I check to make sure the VRO system has oil and is running? There is oil in line and in the tank, just not sure if the VRO system is pumping into the mix. I know, I know, just disconnect and run mix, I would rather not unless the system is dead.
Couple of things you may want to do or test this is basic testing not precision injection volume testing per the instructions in my manual.
VRO in this order ?
Is it pumping oil ?
Correct volume ??
Warning horn test (no oil at pump
Low oil warning in tank (low oil in tank)

First pre-mix a portable tank with gas mix it 50:1 and connect it to the motor fuel line ( this way you can't damage the powerhead)
Disconnect the VRO line from the pump and install a clear fuel line tube, holding it up fill it with injection oil and start the engine you will observe the level as it decrease, allow the running motor to siphon the oil out of the tube, once empty this will activate the warning horn (no oil condition) if not you need to fix the horn or its wiring.
If the above works proceed to remove the clear hose and connect back your original line be sure to check for cracks etc. be sure to bleed the line squeeze the primer bulb. Let it run for a while to clear all trap air etc.
Vro oil tank level can be tested simply by running the engine with the pre-mix tank and use a cheap manual fuel pump and draw the oil level down to 1/4 it will activate the low level warning.
Note my tree shade troubleshooting did NOT cover correct volume injected etc
Good luck and keep us posted.

[Skools Out]

do you hear the fuel system primer run when you push in the key? does the motor still have the oil injection sight glass inline in the oil feed line?

[macojoe]

IMO, get rid of the VRO or don't lost that number for the guy who bought the yamaha, you will need it!!

[nipper]

I had a 1990 90 h.p. Evinrude and the choke was the ignition (i.e. key). You would push it in to choke. I could generally hear the choke click when I would do so. Sometimes I would have to push the key in a couple times after it fired to keep it running when it was cold outside.