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    Mercury 150 xr2 bored .040

    Recently lost 2 cylinders to pre ignition damage. Shop says they can take it to .040 with rebuild. Is this a reasonable solution? Shop says the cylinder sleeves are thicker on the 2.0 motors and .040 is no problem. Are there any issues i should be concerned with?
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    What are these parts on mercury 150xr2

    What are these parts on the 150xr2. I suspect the one on the left is a combination Oil and RPM alarm since it ties into the oil cap and the other to the powerpacks (green wire) Also I suspect the other in the middle is a trim tilt switch that prevents the motor from firing when tilted up
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    Mercury XR2 150 stuggling to get on plane.

    Hi Recently in the last 3-4 times out on the boat, the Merc 150xr2 doesnt have the hole shot it used to. It does get on plane but takes about 300 yards and once its on plane it gets going like it used too at WOT. There is no miss. The fuel lines from motor to fuel tank were all changed and...
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    Replacing Trim Motor, 1987 Mercury 150 xr2

    Hi, I am looking at swapping out a power trim motor on a 1987 mercury 150xr2 that has a bad thermal contact. I could clean it up but decided if I am taking the bracket off the transom that I would just replace the motor. I am looking at the following motor...
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    87 150 xr2 Mercury Oil Injection

    I have an 87 Mercury 150 which recently started beeping while the engine was running. This started at the same time that a switch pack went out causing cylinders 2,4 and 6 to not fire properly. I changed both switch packs and the motor is now firing on all 6 but the oil alarm is still beeping...
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    Mercury XR2 150 oil injection alarm - ignition related

    Hi Recently on the water we moved from one fishing spot where we fished for 2 hrs, moved 30 yards (30 seconds of motor running) and the oil alarm kicked in (beep beep beep over and over). The motor would run but seemed like it was missing and was not running properly. We had a good flow of...
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    After replacing Stator and switchpacks on 150.

    I have been working on my 87 mercury which came up lame a month ago. I was able to determine that the Stator was bad by doing impedance and dva tests. I just finished putting a new stator back on in the same orientation. I also changed out the 2 switch packs with newer switch packs. So...
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    Replacing stator and tuneup

    Hi, I am fixing to replace a stator. I had a couple questions related to this that I am hoping somebody can answer. - Is there any markings that I need to do on stator or housing to make sure I put the next stator on proper and its able to start? I did mark the stator screws relative to...
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    Switchpacks and stators

    Hi, It looks like I am going to have to purchase a stator and switch pack set for a mercury 150 xr2 outboard. I have seen different ones / different prices. CDI is a common manufacturer of course. I have seen Stators for as low as $170 at amazon and boatersplus.com...
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    Mercury 150 HP starter gear remaining engaged

    Hi, I noticed while testing a stator with stator leads swapped for testing, the motor would not start and the starter gear did not disengage. In the normal stator lead configuration the gear does disengage. What might cause this? Is there some leakage/short that could bleed over to the...
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    150 xr2 black max stator switch pack problems

    My 1987 mercury xr2 150 seems to only fire on 1 side. I can feel the heat on the cylinder head on left bank but not on the right bank. I have done some quick resistance checks on the stator which has a ground wire and dont get the right readings between red to blue, but for red-white to...
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    Mercury 150 XR2 cuts out after getting on plane.

    This weekend we went fishing and out of the blue the motor doesnt run like it did before a week before. The motor is strong enough to get on a plane (19' champion) but once its on plane and I have trimmed it to run smooth it will begin to cut out like its either losing gas or the timing is...
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    Power Trim retainer pin

    Does anybody know how to get the pin out that holds the bigger pin on the trim ram that connects to the motor? I have beat on this pin with a pin punch for hours and its not moving. I see there is a hole from the motor side but I cant get a pin punch and hammer in there. Help
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    Draining the power trim tilt system

    recently the power trim system on this older boat (1987 Mercury 150 XR2 Black Max) has started to leak and the fluid is a milky red indicating water in the system. Since the water is brackish I want to drain the system asap and get the water out. The leak is at the top seal of the reservoir...
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