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    Idle adjustment knob

    I’m not completely sure about this but I do believe your correct it is for adjusting the tension of the throttle much like cruise control. If it were on a sail boat you could advance the throttle and tighten the knob so it won’t back off easily. hope that helps
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    Johnson JW-10 value help?

    Based on what I see them going for in my area Cape Cod Ma not running it’s basically a parts motor maybe worth $50. If it’s a good runner maybe $250 on a good day. Best
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    1987 Johnson 48hp doesn't run well with Cowel on.

    Check all the wiring to be sure nothing is lose and able to short when the cover is on. check for lose Insluation in the cover that could get sucked into the intake on the silencer. Run it at night in the dark and look for anything arcing move the wiring around with stick if need be. Video of...
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    1982 15HP Evinrude dies around 2 min during fast idle

    It does sound like your running out of fuel and my first thought was the tank vent as well. I know you said the tank is known to be good and the hoses have been replaced. So if it’s not a vent issue then back to the carb. Yes it was rebuilt but how well was it cleaned? Just a can of carb...
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    35 hp Evinrude

    Yes it did thx
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    25hp johnson 1988

    I’m just wondering what caused you to check the compression before you changed the plugs in the first place? Were you having some trouble?
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    25hp johnson 1988

    Yea sounds like you need to pull the head. check to be sure it is the same internal lay out not just the bolt holes. Put a straight edge on it and be sure it really is flat. check the block for any areas of erosion on the edges. If all else fails next best thing is to install a helix coil for...
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    25hp johnson 1988

    Did you torque the bolts in the proper sequence and pattern? Or use a sealer on the gasket? No sealer required it can cause blow by. Just looking for clues.
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    85 evinrude 25hp power head gasket

    Sea foam is some good stuff in my opinion but as the sane goes if it ain’t broke don’t fix it. Just enjoy it.
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    Newbie needs help with Evinrude 140

    Look at the numbers on the freeze plugs. They may help you Identify the replaced power head.
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    1994 15 hp Johnson Fuel Problem

    More than likely. The ethanol that’s in gas these days attracts moisture from the air and will actually cause water to collect in gas tanks if they are left open. You can use gas additive like Stabil or similar and it works very well for up to a year. The white stuff you found was likely...
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    Power pack difference

    Look at both part numbers again and compare. You my find they are just from different manufacturers.
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    1994 15 hp Johnson Fuel Problem

    How long was it in storage? Should have removed the gas before going into storage. You will likely need to do a carb rebuild and maybe even the fuel pump. And while your at it install a new water pump impeller as well.
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    J50PLSTD miss fire over 3000RPM Idles fine. Compression is good

    Do you have thermostats installed or have they been removed ?
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    91’ Evinrude 25 not pumping water

    Definitely change the water pump or a least the impeller. If you don’t have compressed air try a hose and a piece of wire if needed and clean out the water tubes. Check the water intake screen on the lower could be plugged up with a mud dobber nest or something like that. If you can get in it a...
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    91’ Evinrude 25 not pumping water

    Try blowing compressed air into the water tubes while you have the lower unit off. Any chance you were running in mud or fine sand? Has the motor lived in salt or fresh water?
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    1954 Evinrude Shaft Length Question

    Yea a jack plate would also give you at least 5” of set back as well. That would be a very uncomfortable set up.
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    9.9 evinrude wont idle

    Sorry for my confusion I see know that there is another post mixed in here that is not your motor.
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    91’ Evinrude 25 not pumping water

    Is there water at the pee hose? Where you running on muffs in a barrel or in the water?
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    9.9 evinrude wont idle

    It would be to late to just change tanks if water is already in the bowel. My thought is if motor runs fine other than just at idle when its level there may be a small amount of water in the bowel being picked up when the motor is level. Tilting the motor would move the water away from the...
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