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    QD-15 10hp Johnson lower unit issue

    Hello I have a QD-15 10hp Johnson with a lower unit issue. The pins that hold the gears in place are broke. Someone tried to correct this problem by drilling another hole and put a pin in that but that one broke. I want to replace that housing and found one from a QD-14 10hp. Would that work in...
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    Changing 4 stroke motor oil

    Hello all I hope I’m in the right forum for this. I want to change the oil in my Yamaha 9.9hp outboard motor. I was told to use marine 10w30 oil. What is the difference between that oil and regular 10w30 motor oil? Thanks, Gary
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    1939 Evinrude fuel question

    It’s an Evinrude and sorry for the confusion and thanks for the information. I appreciate it. Gary
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    1939 Evinrude fuel question

    4301-03033 is the correct serial number
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    1939 Evinrude fuel question

    The serial number is 4301-030
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    1939 Evinrude fuel question

    Thanks for the reply. One more question. How would the motor run if it was closed while running?
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    1939 Evinrude fuel question

    Hello all I have a 1939 1.8hp Johnson that has a a knob on top of the fuel cap. Do I need to have that open when I start the motor? If so do I need to close it after the motor starts? I’ve seen that style of gas cap on several type of older motors. Would it be the same on any motor that has...
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    1962 5hp sea king water pump

    I got that lower unit off and removed the impeller. Can I use an impeller from a 1958 5.5hp Johnson? I have one and it looks similar to the one I removed.
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    1962 5hp sea king water pump

    Hello Hopefully I’m in the right place for this. I have a 1962 5hp Sea King that needs a water pump replaced. Do I need to remove the power head to drop the lower unit to get to the water pump? I saw a video where the lower unit was dropped a few inches and then had bolts removed from the shift...
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    1954 10 hp johnson carb issue

    the attached video isn't very good but I think you see the smoke coming out of the carb and this is after the motor has stopped running.
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    1954 10 hp johnson carb issue

    I turned them all the way in then turned each about 1/2 to 3/4 of a turn out and then tried adjusting them after the motor is running to try and smooth it out but it usually stalled out when I did that.
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    1954 10 hp johnson carb issue

    I'm working on a 1954 10hp Johnson. It use to run really well but it has sat for some time now. It was hard to start and I cleaned the carb and replaced the points and it now starts more easily but it runs rough. When it stops smoke comes out the carb. I don't remember seeing that before. What...
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    1958 7.5hp Johnson oil leak

    Thanks for the replies. It was interesting reading. I've work on a few motors and have had some oil in the water but not to the degree you see in the pictures. When I began work on this motor, I notice that the hose that goes from the top of the motor to bottom was dry rotted so I replaced it...
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    1958 7.5hp Johnson oil leak

    I'm working on this 1958 7.5hp Johnson. It starts up OK but after about 30-60 seconds it starts to run rough at any speed and if I leave the throttle alone, the speed will increase and then decrease and back and forth like that then will eventually stall out and the throttle does not move where...
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    1967 9.8hp mercury flywheel

    Hello all I’m working on a 1967 9.8hp mercury and I took the flywheel off and lost the nut. No idea where it went. Can anyone tell me what the thread size is so I can go to hardware store to get another one? Thanks Gary
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    1976 25hp Johnson ignition question

    Yes I did read it and I did lap it the taper, twice and still looks like that.
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    1976 25hp Johnson ignition question

    Thanks for all the replies. I was torquing the flywheel at 40 ft. lbs. I took a closer look at the flywheel and thought the inside was a bit scored. I attached pictures of it. Can you tell if this is a problem? Gary
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    1976 25hp Johnson ignition question

    I'm back working on this motor and it is still breaking that woodruff key on the crank shaft. I'm getting good spark. Compression is good and I cleaned the carb. I also lapped the shaft and flywheel. It wants to start but it backfires first. The best way to describe it is that it pops and a...
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    1954 10HP Johnson crank question

    I did replace that carbon ring and the O ring that goes inside it. That part number matched up and fits. I saw that picture labeled impellar spacer on marine.com too and it added to my confusion. I do appreciate the help if someone knows the correct part number for that O ring.
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    1954 10HP Johnson crank question

    The part number for that O ring I got off the parts diagram and got the part off ebay. I've attached a picture of the two Orings. The one on the left is the one that came off the bearing. The one on the right is the new one I received using that part number. The new one is smaller and I do not...
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