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    Plug Wire Removal

    I Have A 87 Merc 70 Hp I Think It May Have Abad Plug Wire And I Need To Remove It From Coil To Check It But I've Pulled Pretty Hard And It Didn't Move. Are These Made To Be Removed From Coil?
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    87 Merc 70 Hp No Spark On Top Cyl???

    I'M NOT GETTING ANY SPARK ON TOP CYL . HOW DO I TEST FOR COIL OR BOX? iT WAS RUNNING BUT IDLE WAS ROUGH AND TOOK ALONG TIME TO GET UP ON PLANE I THOUGHT IT WAS CARBS BECAUSE I COULD TURN THE SREW ON THE MIDDLE CARB ALL THE WAY IN AND IT MADE NO DIFFERENCE ON THE IDLE OF MOTOR.
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    87 70hp Merc Carb or Fuel???

    I have a 87 70 hp mercury 3 cyl that idles kinda rough but when I give it full trottle it bouges down.I can move the trottle forward a little bit at a time and it will start to clearing out and getg on plane.I bought it about 4 yrs ago and I haven't had any work done to it.When I adjust the carb...
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