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  1. C

    Bad temp sensor?

    check the sensor wire for chaffing/grounding.
  2. C

    Seeking year of motor without model number

    post pictures cowl and all
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    1982 Johnson 7.5hp Backfires but No Start (Wrong Carb?)

    he switched them ...
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    1982 Johnson 7.5hp Backfires but No Start (Wrong Carb?)

    now that the plug wires are in the proper place ....just clean the carb... check the fuel pump filter if any before it dies try pumping fuel up the carb with the hose pump if it stays running thefuel pump is in need of a close look. see an old carb... much like yours except for...
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    1982 Johnson 7.5hp Backfires but No Start (Wrong Carb?)

    tried inverting (reverse) the plug wires ????
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    1996 50 hp adjustment question

    not to many option a ground usually
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    Fuel primer inop

    https://maxrules.com/graphics/omc/wiring/1988_89_200_225.jpg looking at the 89 version of the 200 hp wiring we can see that the key energizes the primer pump...electrically of course and seems no electrical CHOKING is involved in the key switch. In conclusion the only way to get some...
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    1988 48 special carbs

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    1988 48 special carbs

    why not tell us if you popped the dime size plug on top to clean the low speed circuit of the carb. did you confirm carb cleaner flow via all orifices did you line up the proper carb gasket mounting holes... all of them incl. the side channel to the top half of the carb ??
  10. C

    1988 48 special carbs

    Compression, sparks, enough fuel, oxygen .... one down oxygen three to go ....
  11. C

    1988 48 special carbs

    wrong carb I know but same basic designs from years gone by fuel fowls via jets or orifices and the the carbs do the same job. see 48hp carb.... not much new from the 50's :-)
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    1988 48 special carbs

    this might be my idling problem but I am not sure . Any ideas? did you or not clean the top idle chamber and small drip holes used to providethe engine with fuel in the idle stage ?? see yellowed cap on top btw a very small channel on the side of the carb allows fuel to rise to the top...
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    Fuel primer inop

    if the wires have the " ground" identifier loop replaced with a commn connector reverse the polarity just as a test ... plungers may push or pull depending on the magnetic field if all else fails ...well as suggested try to get a good used one
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    Fuel primer inop

    the device is simple in design plunger , tip , gasket and... holes...(fuel barbs) have you at least tried to see if air can pass (see video)
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    Fuel primer inop

    It acts like it’s not pulling solenoid down far enough have you clean up the cavity , the mesh screen etc... apply a very light duty lubricant to the solenoid body and polish the plunger electrically looks good ......now you need to fix the hardware
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    1988 48 special carbs

    clean the carb incl top idle chamber nothing wrong with jets except crud
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    Fuel primer inop

    if it does not work electrically have you tested the ohms across the 2 wires controlling it. it is basically just and an electro magnet controlled valve so you better not see OPEN between the wires. see video if the failure to let fuel go by while under pressure is not...
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    Evinrude Big Twin 35

    Leroy's will give all the basics to service the magneto tons of info also visit DUckworks https://www.duckworksmagazine.com/06/columns/max/articles.htm Reviving a Vintage Big Twin Part 1 Part 2 Part 3 Part 4 http://www.leeroysramblings.com/#12_OB
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    2001 fitch 90hp

    see manual 2002 and up but... it may help with some trouble shooting like ETECs FICH has a VST and likely... it may have a small conical filter on the return fuel line from injectors and..... they do get clogged with fuel line crumbling pieces and cause grief VST fuel barbs...
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    Evinrude Big Twin 35

    https://www.duckworksmagazine.com/04/s/columns/max/15/index.htm
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