bad coil?

medic2051

Petty Officer 2nd Class
Joined
Aug 11, 2003
Messages
150
Launched boat today (50 hp 1975) and she kept cutting out at low idle. If i opened her up all the way, it sounded like she was running on one cylinder, until the RPMs would finally kick in then she ran smooth. Rebuilt the carbs last year, one new coil last year (similar symptoms, i believe) winterized at end of season new plugs this spring and good, equal compression this spring. The boat ride to the water is about 100 miles of highway. Good an electrical part be damaged trailering? Or does it sound like a bad coil?<br />Thanks
 

jfm1

Petty Officer 1st Class
Joined
May 14, 2004
Messages
355
Re: bad coil?

do a spark test you may need to check your points before you invest in a coil
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: bad coil?

Test the spark, if it is bad on 1 cyl. switch the coils if the problem goes to the other cyl. it's the coil, if it don't switch cyl. it's probably the ign. box---Bob - I think OMC was done with points in 1972
 
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