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  1. C

    Hard starting mercury outboard hot or cold

    I have a 94 40 horse oil injected mercury motor. I did a compression check and 3 of the cylinders were at 100 the fourth was 90 is that ok or does something need to be done. My other problem is the motor is hard to start,is the butterfly on the carb supposed to be shut even when im not pushing...
  2. C

    94 40 horse merc oil injected hard starting cold and hot

    I have a 94 40 horse oil injected mercury outboard that is really hard to start even when hot. I replaced all 4 spark plugs, fuel filter, removed and cleaned both carbs. It runs good after starting never hesitates when excellerating. I ran the motor for an hour on the lake periodically shuting...
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    spark plug fouling

    I have a 35 horse chrysler and i keep fouling the same plug every couple of trips 2 the lake . I checked compression one cylindar read 100 psi the other was about 105 . It burns through the gas also, I would say it burns 4 gallons of gas n about 8 miles . Any suggestions ?
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    Impeller problem

    I had a 78 chrysler 35h motor given 2 me the drive shaft was stripped where it slides n the motor . I found a replacement put it back together with a new impeller . It did not pump water so i took apart and the pin that spinns the impeller was inbedded n the impeller and it put grooves n the...
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