Can't get my 1978 Mercury 7.5 started.

[Saskatoon2005]

I have been trying to get it started now for two days and no luck....I am about to loose my arm from pulling the starter cord. I took off the carburetor and cleaned it right out with carb cleaner. Put it back on and also I am not getting any spark on one of the spark plugs. The higher one. The lower sparks fine.

 

[joblo33]

Re: Can't get my 1978 Mercury 7.5 started.

Does the coil for the upper cylinder look cracked or damaged? If not it's most likely the powerpack, which I don't know exactly how to test but someone on here can probably help you with that. Does the powerpack look burnt?<br />Eric

 

[btatum]

Re: Can't get my 1978 Mercury 7.5 started.

swap coils and see if spark move with it.<br />if not i'd take a good look at the sw/box