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    What percentage of value of motor do you replace? How much to spend on parts motor?

    Shops around me won’t work on these old OMC’s. One shop I found did agree to work on it but repairs were done a bit incorrectly . Ex: they ran the condenser wires too high and the flywheel rubbed them and caused a short, twice they did it. I ended up getting a service manual and rewired the...
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    Leaking 1972 25hp Johnson lower unit oil drain plug

    Thanks everyone for all the responses. I tried two different o-rings with plumbers tape but she still drips a drop every few hours or so. I’m leaning towards the JB weld idea to create a flat surface. I’m thinking if I do it carefully and tighten the bolt against the washer, it should in theory...
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    Leaking 1972 25hp Johnson lower unit oil drain plug

    Thanks I was hesitant to use JB weld because I may permanently lock that plug in but what you suggested makes sense. If the tape doesn’t hold, I’ll give that a try
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    Leaking 1972 25hp Johnson lower unit oil drain plug

    Thanks that makes sense as it does appear crooked when the plug is tightened in. I’ll try plumbers tape and maybe liquid sealant. This was to be my parts motor but the power head and magneto looked so good kind of wanted to revive it.
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    Leaking 1972 25hp Johnson lower unit oil drain plug

    Well , I replaced the white washer with OMC part, still drips small amount of oil . I cleaned the threads on the drain hole and bolt. Still leaks. Tried using a o ring and plumbers tape on threads, still leaked. But it was full of oil and not dry when I applied the plumbers tape. The threads on...
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    Need to find out Year

    https://maxrules.com/models/OMC_models_files/1980_1999/40_70.html Google shows it’s a 85. Check link
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    1969 25 Hp Johnny Rude/Kicker?

    Also replace that little seal on the thermo itself if needed .
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    1969 25 Hp Johnny Rude/Kicker?

    If you didn’t replace the plugs since you got it, I would do so . Clean those old ones up a bit and use for backups on your on boat “repair kit”. Champion J6C like I posted earlier is what I find works best. Also, you stated you haven’t had it on the water yet….make sure you never start that...
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    1969 25 Hp Johnny Rude/Kicker?

    eBay has your motor’s factory service manual for under 20$. I recommend getting one . One thing I learned the hard way is if pull the flywheel and replace any ignition parts (points/coils/ condensers) make sure you carefully “tuck” the wires as they were. If not, they will rub against the...
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    1969 25 Hp Johnny Rude/Kicker?

    I use marine bearing grease to lube up parts as well as white lithium grease if needed . Seems to lube things good
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    1969 25 Hp Johnny Rude/Kicker?

    There is a shift lock that prevents the user from shifting into gear at higher RPM/throttle . See part #42 and the part in the image I’m pointing to.
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    1969 25 Hp Johnny Rude/Kicker?

    Not sure what the issue may be without seeing it but I know my motors of the same vintage had sticky throttles that were hard to turn/adjust. I cleaned the throttle arm assembly and re-greased…The old grease gets hard especially if it’s cold outside. Disassembly the handle and clean/grease up...
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    1969 25 Hp Johnny Rude/Kicker?

    Like another mentioned, Leeroys rambling is a great resource. On one page he actually stated the 1969 25hp OMC was the best motor they designed. Let me know if your interested in selling it:)
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    1969 25 Hp Johnny Rude/Kicker?

    I have a 14’ aluminum with a 1970 25hp Johnson along with a 71 and 72. I also have a 55lb thrust trolling motor and carry oars. I also am a bass fisherman. I’ve had plenty of issues learning how to maintain/revive these old motors. One thing to consider is these older point ignition motors...
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    1996 25hp johnson questions

    eBay has a service manual for your motor currently selling for 25$ free shipping . I picked one up for my 50 year old Johnson few years ago. Lots of valuable info for all kinds of service work.
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    Does this indicate water in lower unit oil?

    Hopefully the strange color is from the shop who had originally serviced it used cheap oil. I’ll run it a few times and check for water intrusion. If I find water, I’ll pressure test it and replace the necessary gaskets/seals. I found some good YouTube videos on the procedure. Luckily I’m...
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    BRP Engine Tuner ?

    I’ll spray on the lake then fish for few hours then WOT.
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    BRP Engine Tuner ?

    Will do, that makes sense . I’ll do the lake method
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    BRP Engine Tuner ?

    Thanks good to know.
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    BRP Engine Tuner ?

    Thanks
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