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  1. C

    B100 Milky Oil - Head Gasket Looks Good, Now What?

    I have a B100 which I believe is a 70s model and found to what appears to be water in the engine oil. Drained it, filled it and ran it again and was milky again, so it doesn't take long to get water in there. It starts up easy, runs good and is a nice clean outboard. I immediately thought...
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    New head gasket leaking, start over or?

    I just replaced my original head gasket with a Sierra and per a couple reputable sources did not coat it with Gasket Sealer. I started it up last night and almost immediately saw water coming out of several of the center head bolt heads and one tiny drop between powerhead and cylinder head. I...
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    5 HP Nissan 2-stroke crankcase torque specs - bad bearing replacement

    I have a NS5B 5 HP 2-stroke that had a bad lower bearing so I am replacing it along with the top bearing and top and bottom seals. Does anyone know the torque specs for the crankcase bolts and in which order for when I put it back together? I believe I should use a thin bead of Loctite 518...
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    2000 60 HP Johnson - Running on 2 of 3 cylinders when cold

    I have a 2000 60 HP (powerhead) jet that starts up and runs pretty well but without full power. It acts like it is running on only 2 of 3 cylinders. After running it for a short while I then started it back up after sitting for 30 minutes or so then I am back to full power. I thought it was...
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    2000 60 HP Johnson Tilt/Trim Switch Works on Motor But Not on Remote Control

    I have a J40JPLSSR (60/40 HP Jet) and trying to figure out why the remote control tilt/trim doesn't work but the switch on the side of the lower cowling works great. I know my tilt/trim switch on the remote control is bad so I need to replace that but before doing so I wanted to make sure...
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    Swapping a 1988 50 HP to a 1990 40 HP Powerhead

    I have a 1988 50 HP Yamaha 50ESGJD jet tiller that has a blown powerhead (zero compression in middle cylinder) and I got a good deal on a fully dressed 1990 40 HP powerhead 40ETLD. I was wondering if I can literally just swap them out completely? The bottom seal between the two are the same...
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    1975 35 HP Evinrude Runs Great for a While Then Sputters/Backfires and Dies

    I have a 1975 35 HP Evinrude that would start fairly easy run for a short time then start sputtering and acts like a backfire and dies. I went through the carb and cleaned it again and then went through fuel pump for the first time and one of the two springs that was embedded in the plastic...
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    1996 6 HP Evinrude No Spark

    I have a 1996 6 HP that does not have any spark in either cylinder. The motor ran about 2 years ago and has not been used since. I have confirmed the kill switch is working properly with an ohm tester. I have a manual for earlier models for testing the coils but not this late of model. What...
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    25 HP 2000 Evinrude Converting From Electric to Manual Start

    I am looking at a 2000 25 HP Evinrude where the electric starter has two broken bolt mounts to the powerhead. One is sheared off and one is wallowed out bad probably beyond repair therefore looking at converting to manual start instead of swapping out the whole powerhead. What parts would I...
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    Sign of blown head gasket or stuck rings on 1983 60 HP Evinrude?

    I need a little help diagnosing a 1983 60 HP Evinrude two cylinder with low compression in the top piston. The top is 90 and the lower is 140. Crankshaft feels tight with no slop in the bearings. The top spark plug had very small signs of moisture around the end and the lower showed even...
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    1987 15 HP Johnson Carb Tuning Issues

    I have a 1987 15 HP Johnson that starts easy and runs great for 10-15 seconds with good throttle response then bogs down and dies. It has even compression at 95 lbs per cylinder, rebuilt and cleaned carb, new plugs, good spark, checked fuel pump and adjusted link and sync to where it should be...
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    Lower unit pressure test question on 1990 8 HP Mercury lower unit

    While draining the lower unit oil I noticed a very small amount of lightercreamy oil at the very beginning then cleared up quickly and was the normaldark green color for the rest of the oil. Looking back in the jug it is still dark green so must not have beenmuch water in there if any at all...
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    Testing 1973 65 HP Evinrude Starter Solenoid

    I have a 1973 65 HP Evinrude that is giving me issues with starting and have drilled it down to being the starter solenoid. When I try to start it the solenoid just makes a loud clicking noise. It has not been replaced in a long time and might be original. I know it is not the safety neutral...
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    1996 15 HP Johnson 4-stroke dies after 30 minutes on the water

    The motor starts very easy and runs great until about 30 minutes then acts like it is firing on one cylinder or just looses power. If you wait about an hour it starts right back up and does the same thing again. It has good even compression and the ignition module was recently replaced and it...
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    Rebuilt 1974 15 HP Evinrude Not Staying Cool - New thermostat - Fresh Rebuild

    I just rebuilt a 1974 15 HP Evinrude and it is not staying cool even with a new thermostat I just installed tonight. I tested the thermostat and it is opening around 140°-145°. I know it is pumping good water up to the thermostat because I pulled it out along with the cover plate and started...
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    1994 9.9 HP - won't start - red light blinking

    I am trying to get my 1994 oil injected 9.9 HP (DT9.9C) oil injected Suzuki running and it won't start. There is a little red light on the front of it that blinks quickly when I am trying to pull start it. Is this normal or an indication something is wrong therefore won't start? I am new to...
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    9.9 Nissan won't start - blinking red light

    I am trying to get my mid 90's oil injected 9.9 Nissan running and it won't start. There is a little red light on the front of it that blinks quickly when I am trying to pull start it. Is this normal or an indication something is wrong therefore won't start? I am new to Nissan outboards. I...
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    How do you tune a 1973 65 HP Evinrude?

    I just replaced the powerhead of my 1973 65 HP Evinrude (65373R) and put on new coils and cleaned the carbs. It is a 3 cylinder with 3 carbs. The top carb has an adjustable needle and the two lower carbs have an adjustable screw in place of where the needle is of the top carb. Can someone...
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    Intake on outboard jet stuck and can't remove, any ideas?

    I am trying to remove the intake to replace the water impeller on my 65 HP Evinrude jet and it is stuck on there good. I have removed all the bolts and they came out pretty easy with only a very small amount of corrosion on them. I have tried PB Blaster and Aero Kroil in several sets letting...
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    Testing a 65 HP Johnson Starter Solenoid

    I have a 1973 65 HP Johnson motor that I believe the starter solenoid is bad but wanted to double check. With key in off position I have 12v to the large battery cable attached to the bottom of it. No current anywhere else. When I turn the key on to the start position I get 12v to the bottom...
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