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Re: Will 12 volt coil on a 12 volt conversion burn up points


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Posted by Deere63 on April 19, 2012 at 16:07:21 from (50.73.52.221):

In Reply to: Will 12 volt coil on a 12 volt conversion burn up points posted by Deere63 on April 18, 2012 at 23:23:39:

Wow...well this topic sure expolded!..haha. Well thank you everyone for all your help!. Well what I have done is eliminated the resistor from the dash, ran the wire straight to a new 12 volt coil, replaced the points and condensor and she fired right up and runs better than it ever has since I've owned it! So, apparently my points were bad all along in addition to the resistor and I kept overlooking them.

A little history I failed to mention earlier...The 8N became extremely difficult to start and kept stalling under a load. I ended up rebuilding the carburetor first since it was due anyway. Tryed that and nothing. Next I checked spark and had spark only on some plugs but not the others. I checked voltage at the resistor and had 5.86 volts as well as at the coil which is what was expected. Next I checked spark from the coil wire and had nothing. I suspected the coil was fried. I checked the voltage at the resistor one more time for whatever reason and all of a sudden had 12.86 volts which indicated the resistor was actually bad and intermittently fluctuating, in turn probably what burned out the 6 volt coil. So thats when I came on here and asked whether or not to replace the resistor and 6 volt coil, or to bypass the resistor all together and go with a 12 volt coil. So I ended up doing that and replacing the points while I was at it and she fired up so fast I couldnt believe it. I know it was a combination of everything including the readjusting of the rebuilt carb because she purrs like a kitten now and idles with the throttle lever all the way back! She never did that before. She only idled at half throttle and rough at that!

So my question now is..after all those comments up there, shall I still insert a resistor with my new 12 volt coil before I burn it up or will it make so little difference in life length I wont notice??


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