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  1. R

    Scrape in Fiberglass Hull

    Yes----And a decal of say a fish or butterfly to hide any cosmetic / matching issue.
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    1973 18 hp evinrude Driver Coil test

    That pump was first used in 1968.----Used as late as 2007 as well as a modified version and as a vapor extraction pump on the V-4 and V-6 model up to 175 HP
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    1973 18 hp evinrude Driver Coil test

    The diaphragm may not be listed for your 1973 model.----But there is a list as long as your arm (200 models or so ) of motors that use the pump and that same diaphragm.
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    1973 18 hp evinrude Driver Coil test

    Factory kit comes with instructions .---Guaranteed not to be " chinesium " parts.---Fix it right the first time.-----And really the diaphragm is the only thing that fails !!!----Available $4.54 as a part by itself.
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    Late 70's Lower unit identification

    Sorry ----Too far away for me to help you.----There is a 6 digit casting number on that housing.-----Most experienced shops would be able to help you I think.----Put a hundred gearcases on a pile and I think I could pick out one to fit a 78 model 115 HP.
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    1973 40hp Evinrude Norseman 40355D

    Check fuel pump diaphragm.----Test run with another tank and hose.----Tachometer would need to run of the magneto ( rare item ) I think.-----Or look into a ----tiny tachometer -----Using google.
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    Possibly ran without oil. What to check?

    Trouble shooting starts with compression test ----Post the numbers.
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    1973 18 hp evinrude Driver Coil test

    About the only thing that can go wrong with the fuel pump is the diaphragm $6.00 or so and dirt on the check valves .----Easy inspection and fix.----Otherwise you are not learning by " trying " another pump !
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    How long have you owned a Chrysler Outboard and what has been your experience

    Water pressure gauge and learning / monitoring it is PRICELESS !!
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    1986 140 hp Evenrude

    Running on 2 cylinder would be the reason for low power output.
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    2000 115 johnson. Loss of power on top end

    I thought trim wires are blue for up ( sky is blue ) and a green wire for down ( grass is green )----Other wires might be for a trim gauge.
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    1986 140 hp Evenrude

    Glue 2 pieces of wire on a piece of carboard.-----3/8" gap between them.----Then one end in the plug boot.----Other end clipped to the block.
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    coils (newbee)

    Your location ?-----Check on the ----aomci-----website for hundreds of members that might help.
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    '84 evinrude 6hp E6RCRM

    Timing does not go out of adjustment.----Not much you can do with a timing light.
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    1973 18 hp evinrude Driver Coil test

    How does it run with cowling off.?----Do you have a fan blowing exhaust away ?
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    1971 25hp run J4J Champion? Or ....

    Use the ---J4C------Make sure thermostat is working properly.
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    1963 10hp Johnson QD-24 Flywheel rotating the mag plate

    Using the 3 bolt ( grade 5 bolts ) puller is the only way to pull flywheel.-----Nor sure how you can have issues with that method.
  18. R

    Johnson 20R71S 20 HP

    Some will argue.----If I was going to use a 50 year old motor as my primary fishing motor I would install a seal kit.-----If you are fixing it to run so you can sell it then no.------Most buyers think that if a motor barks and roars then there is nothing that needs attention !!
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