ok i want to mix my gas instead of relying on the oil pump how do i do that and do i have to plug the hose that the oil use to go through

Mercury sells a block off kit for some their older big blocks.  What motor do you have? I wouldn't do that unless it was an older motor and that motor year/model had a history of causing problems.  A project boat I picked up in the fall has a Merc XR2 with a block off kit and I'm not looking forward to dealing with mixing oil.

Depends on motor.   Johnson's and carburated Evinrudes, all you have to do is unplug the 4/5 pin connector to the VRO pump and the sensor wire to the oil tank (if it has one) to keep the alarm from going off. 

Mercs, again depends on model.  The older one with the tank and pump in the battery compartment, you just take it out and run fuel line direct to the tank instead of through it. 

Yama's and new mercs and other, I don't know, don't mess with them.

well my motor is a 60 hp evinrude but not sure of the year the boat is a 91 so id imagine the motor is around the same

The VRO is a big black unit on the side of the motor, it's the fuel pump and oil pump combined so both fuel and oil lines will go to it.  There is a four/five pin connector that plugs it into the main wiring harness.  All you have to do is unplug that connector to keep the alarm from sounding.  Also check your tank, if it has a wire going to it, follow it up to the motor and unplug it.  If you need the room, you can take the tank out, if not you can just leave it.  It's not going to hurt anything by just unplugging it and leaving everything in place

If it's the original VRO pump, I would disconnect it.  If it has been replaced since 1999, it should be the upgraded CRO unit and those are almost bullet proof. 

To upgrade/replace it with a new unit will cost around $400.   They do make a fuel only pump that replaces it and you don't want the oil injection that cost approx $200.  I convert them to electric fuel pump, tthat's approx $100 and it makes life so much simplier.  No more pumping primer bulbs and a whole lot easier to start.  Just turn it on, hold the key in a few seconds and start it, almost as easy as a DFI motor.

Please note: not just any old cheap electric pump will work.  You need at least 30gph and 6 psi, no more than 7 psi.  I use a 76gph on V-6's

INTRODUCES

0123456789the last 2 letters in the serial number and you will know the yae of the motor

yes i know i just haven't looked yet,it is cold out there