Just unplug the pump harness. VRO pumps are mechanical the only electrical part is the oil flow sensor and alarm.

The pump has it's own harness that needs to be unplugged. Is the oil tank disconnected?

This isn't the first place he has posted this, he actually came here from another site.

Why don't you stop being a snob.

What are your Rpms in gear at an idle on a warm motor.

[QUOTE=Ky Howard;734281]OK, I checked but got nowhere. I'll have to make some phone calls tomorrow. Thank you
...

Edit.

I used his model #

Do the threads go all the way through?

Get a different gauge and re-test your compression. Those #s are terrible.

Do a compression test.

Looks like it is on the exhaust plate assembly.
https://www.marineengine.com/parts/mercury_marine_parts/sn/0T617192/1090412AD/3374_160

Mercury considers anything under 120 a problem I believe. Get a different tester with a 90 degree fitting and try it again.

Are the carb kits OEM or aftermarket?

Shift cam is backwards or the Shift rod is not seated.

I am lost. You need the factory manual and do the correct testing.

Have you done a proper spark test? Spark jumps a 7/16" air gap. What is your motor doing or not doing.

1985
mxd
6593849 - a173761
7219218

Did you sync the carbs? Could have one open slightly

Put your carb adjustments back to where they were. Carb adjustments are made with the engine running in gear and up to operating temps. You cannot set them on muffs must be done in the water.. Idle...