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    1990 Johnson 70hp engine warm /will not restart

    Has suggested on-going maintenance is key to happy boating. what is the mdl number ?? of your engine you should do complete check of things on a new to you engine. incl. gear oil replacement, impeller, check for proper cooling (thermostat) a carb service is a good investment...
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    Ignition switch

    wires oxydize and..some break ... make certain you see 12V on the S post at key START and 12V on the B post. . if you have 12v on the S post at START and the neutral switch is OK trace the S wire back to the solenoid. year hp and mdl of engine ??
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    Cam to Throttle linkage, EVINRUDE / JOHNSON 6HP AND 8HP

    why not just make a few test links. at START the roller (Cam follower) should just touch the cam under the fw.
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    1958 Johnson 35 hp fuel pump rebuild

    since it has a nipple/barb to the crankcase to get pulses and if you are unable to restore it back to operation you could always hook-up a more modern fuel pump with an external filter.
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    Copper crush washers ok to use?

    Idoubt nylon absorb water.... it deforms when crushed the first time and should simply not be reused or flipped over to save a few pennies. still applies today on modern engines
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    Where do I find a Johnson SeaHorse 4.5 manual, and what oil do I need to run it with?

    servicing small outboard is realy not complicated. Leroy's can provide you with the basics. if you have no internal mecanical issues the rest is oil mix, carb jobs, greasing where needed, refilling/checking gear oil etc...
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    1981 115 Johnson charging voltage is 16 volts

    thanks for info... may be a non issue in this case. Years ago my Merc 45 was running high causing my Humminbird fish finder to shut down. I eventually resorted to installing 3 small volt. regulators in parallel (Radio shack stuff) to give me 3 amps on the fish finder. Gave me a real nice...
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    1981 115 Johnson charging voltage is 16 volts

    no expert but 14v should suffice... 16v certainly seems high and may cause some eqpt to shut down.. check battery voltage on its own...should be around 13.5 fully charged or have it load tested. try another battery as a test see if results change
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    Evinrude 55 HP Running On 1 Cylinder

    just fyi see how old 2 strokes are mofified to run a pump with half the crankcase pressure pulse channels . on older ( pre-1960s) pressure tank eqpt. outboards the air pressure is channelled to the tank via 2 flapper valves and builds up in the tank which in turn pushes fuel back up to...
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    Evinrude 55 HP Running On 1 Cylinder

    thanks for your feedback great eye openner to many !!
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    1956 Evinrude Big Twin 30hp ES

    this is an old thread 10 years old best to start a new one ...!
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    1956 evinrude 30 hp big twin clutch dog replacment

    this is an old thread... 10 years old !!!! . best to start a new one
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    Evinrude 55 HP Running On 1 Cylinder

    pressure pulses to drive pumps frequently come from one section of the crankcase. flooding it with fuel from a bad diaphragm will not affect the other half of the cranckcase
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    1987 15hp Evinrude starts but quits every time.

    and a recent case of dirty carb was resolved with several sessions in a ultrasonic parts cleaner at 50C temp. to really loosen crud in tiny passages. see cleaning tools for carbs...
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    1981 115 Johnson charging voltage is 16 volts

    16 volts must be coming from the suspect component I doubt you could test further . how is the battery itself ... new old sulfated ?
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    2004 Johnson 50hp buying advice

    usual stuff to do .... check GC oil if old and dirty not so bad just repalce it ... if fresh oil maybe hiding a GC leak check compression and report back check ignition ( does it have sparks ) change the impeller do a test run if permitted by the seller etc...
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    Need help to id the motor

    navy jones ?
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    1987 15hp Evinrude starts but quits every time.

    if it runs 30s it is burning carb fuel and no more based on " The next time on the same river I found that if I pumped the ball slowly while at higher RPM the motor wouldn’t die" it sounds like a bad fuel pump or screen. may as well check everything associated with fuel pick-up to...
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    Evinrude decals

    check with folks on AOMCI "ask a member" were oldies live.... https://www.outboarddecals.com/store/c/18-Boat-Engine-Decals.aspx
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    Fuel line for pressure tank

    since they have no side cover plates to tap into to get a pressure pulse you must use the air pressure nipple and change the side connector to a single line one... best to find one before starting any mods !!! . a small Mikuni B&S pump works well... yet some have reported problems with...
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