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    Engine Test

    Is it possible to run an engine at high speed with the ear muffs on?
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    Engine Stopped Running

    I have a 1978 70hp Mercury. Went out this morning' The engine ran fine for about a 1/2 hour then would not start. After about 15min it started but once I put it in gear it stalled. Same thing about 3 times then would not start at all. It will crank but will not start.<br />Any suggestions on...
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    engine losseng fuel prime

    I have a 78 Mercury 70hp. Starts up and after it gets going it looses prime. replaced fuel pump, fuel lines, cleaned carb & check valves and still doing it. Can anyone help?
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    engine bogging down

    I have a 1977 70hp mercury. Starts with no problem but once it gets going it starts to lose prime and stall. If I pump the primer ball it starts to go again. Replaced fuel pump and all the fuel lines and checked them. Everything seems ok. Any one have any suggestions?
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    shockwave

    I have a 1977 70hp mercury thats giving me some problems. Engine starts with no problem but after it gets going it losses prime and got to keep pumpimg the primer ball to stop it from stalling. Fuel pump and all fuel lines where changed and checked and everything seems ok.
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    engine bogging down

    I have a 1978 70hp Merc. I just purchased and took it out for the first time this past week and it ran fine for about 3 hours then it started bogging down like it was starving for gas. Revs high in idle but once in gear and hit the throttle it starts to bog down. Any suggestions
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    new harness installed no spark

    I installed a new harness on a 1978 70hp merc. The engine cranks but has no spark. also replaced the stador, trigger, rectfier, coils & swithbox. Also the mercury switch checked out OK. <br />Please help
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    1978 merc still has no spark

    I have a 1978 mercury 70hp merc ( serial #4826566). Just installed new wiring harness,switch bow,stado,trigger,coils & rectifier. Engine cranks but still get no spark. Can someone please help or have any ideas what else it could be.
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