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    1998 Force 120 Stalls out in Low Gear

    Yes exactly what Topgun3690 says, use those cheap filter such as Fram G2 and other brands. BTW Fram is a good brand in my opinion, they make good oil filters for cars and these fuel filter are very good stuff.
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    1990 Force 120HP trim and tilt not keeping motor up no leaks

    I am a bit puzzled, have never seen that typ of cover but it looks like it is broken. I can not determind that. Maybe jerryjerry or pnwboat will chime in.
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    1998 Force 120 Stalls out in Low Gear

    Change the fuel pump diaphragm and put a clear cheap inline fuel filter between the fuel pump and the carbs. This is cheap stuff and useful. With a clear filter you can see if fuel is pumping to the carbs the troubleshoot from there.
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    1990 Force 120HP trim and tilt not keeping motor up no leaks

    Looks like that is a part of the cover and it has broke from the rest of the cover. The cover has a grove for an o-ring and the two seals #18 and 19 are seated in the cover too.
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    1990 Force 120HP trim and tilt not keeping motor up no leaks

    Part number 18 and 19 are seals. 18 seal for drive shaft to water pump housing and 19 seal for drive shaft to gear housing.
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    1997 Force 90hp Stiff steering

    Remember if you are searching for parts that Brunswick (Mercury) started to put more and more Mercury parts to the Force from 1993-94 and up. Major of the parts was the ignition system and gear cases.
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    Chrysler 55 one cylinder occasionally fires

    I use a larger screw driver or a small crowbar and wedge it between the flywheel teeth and the starter gear teeth. It has always worked out to loosen the flywheel nut.
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    1973 Johnson 9.5hp Motor Troubleshooting

    From earlier in the thread you mention you have change both ignition coils. That´s right? From my experience ignition coils for OMC engines from 50-70.es suffers from dry out and cracks. Other brands like Merc and Chrysler did not have that problem. I have not have these issue with these brands...
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    1988 force 125 won’t stay on in water

    The major different you have between running on muff and running in water is when in water you have the water back pressure. First check to run in water without the engine top cover on. Maybe you have an exhaust leak, check for leaks around the exhaust cover plate and the exhaust/water rubber...
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    Tune Up Specs 1973 Johnson 50HP 50ESL73R

    Sounds like it is running on one cylinder. Check for spark again with a timing light when running. I do not trust the cheaper inline spark tester, that is why I suggest you to use a timing light. I have use these cheap inline tester and got spark (it flashes) and when I check with a spark tester...
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    1973 Johnson 9.5hp Motor Troubleshooting

    Check the ignition system once more, it sound like an ignition issue. Check for spark with a spark tester or use a steel rod to connect in the HT wire rubber boot and hold it about 5/16 or more from good ground. Pull the recoil starter and you should see a spark jumping that gap. Replace points...
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    50 hp force no speed

    Of course racerone you are right, my brain must have had some miss match when I typed it down !!!!!!!!! Sorry.
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    1998 Force 120 overheating under load

    Do as topgun3690 says, use a IR thermometer and "shoot" at the head when the alarm goes off. You can test the sensor but hard to get an exactly value when it goes off (bimetal switch). Put it in a can with water and heat it up on a stove, check with a VOM when the switch close and check the...
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    50 hp force no speed

    Yes maybe running on one cylinder. Do a drop down test in neutral at idle. If running on one cylinder it will stop when you pull the HT boot at the bad cylinder.
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    1990 Force 120HP trim and tilt not keeping motor up no leaks

    The gear and roller bearing furthest way in the gear housing is for forward. Looking at the pics it looks like you have to replace the roller bearing and race. Clean the gear and roller bearing and lube it with thin oil. Spin the bearing and listen and feel how it sound when spinning. Maybe it...
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    1990 Force 120HP trim and tilt not keeping motor up no leaks

    Hard to say without look at it, but if the needles looks good and the race looks fine with not marks or pitting reuse it.
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    1990 Force 120HP trim and tilt not keeping motor up no leaks

    Now when you have the LU apart check the clutch dog. It is the clutch dog that make the shifting from forward and reverse and vice versa. The edges at the clutch dog teeth should be sharp and perpendicular not rounded. If they are rounded it maybe slip out of gear under load.
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    Charging system Not Working?

    Sounds like the regulator/rectifier is bad. Either the rectifier part is bad or the regulator. The rectifier part is a single phase rectifier with 4 diodes hooked up in bridge configuration. The regulator is a zener diode with a zener voltage at about 15-17VDC and it is connected to positive...
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    engine overheating

    The thermostat is under the small cover just above the top spark plug. Be really careful when removing the screws, they can snap very easy. When you changed the impeller was all fins on the old impeller? If not check for part of the fins in the water jackets. Has the engine been running in salt...
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    Charging system Not Working?

    Check with a VOM if the alternator is putting out any AC voltage. Do it with the wires connected to the regulator/rectifier. Then check if there is any DC voltage output more then battery voltage at the regulator/rectifier. Outboardignitiondotcom have troubleshoot chart for the regulator/rectifier.
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