1985 250ES Big Red Exciter coil - Honda ATV Forum
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post #1 of 2 (permalink) Old 01-29-2012, 06:42 PM Thread Starter
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1985 250ES Big Red Exciter coil

I have a 1985 250ES Big Red that after it has been running for about 10-15 minutes just quits. I believe that the problem is the exciter coil since the resistance between the blk/red wire to ground goes from 360 ohms when it is cold to over 500 ohms when it quits. After about 5 minutes after it cools down the resistance for the exciter coil goes back down to 360 ohms then it starts. According to the service manual the blk/red wire to ground should read 50-200 ohms. My question is where is the exciter coil located?? Is it part of the alternator??
Any help would be appreciated. Thank you in advance.
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post #2 of 2 (permalink) Old 01-29-2012, 06:54 PM
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Welcome to the forums. Yes, it's one of the coils on the stator/alternator assembly.

Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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