Stator question - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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Where does this wire go?
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post #1 of 5 (permalink) Old 05-14-2019, 08:49 PM Thread Starter
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Stator question

I might already know the answer to this but, my 86 Vulcan 750 is having charging issues, tested the stator, equal resistance across all 3 phases, no short to ground. Running ac voltage a&b is 50 at 3500, a&c is 50, but b &c is 15 volts, bad stator or bad connection? Tested at the r&r plug not the bullet connectors
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post #2 of 5 (permalink) Old 05-14-2019, 09:32 PM
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Did you know you posted this twice? What (if any) is the resistance between any combination of the 3 yellow wires? The AC voltage of 50 VAC is about right, but 15 VAC shows you have a bad coil or bad connection to the coil. Odd the OHMs are the same across all 3 and the voltage is not. I would unplug the bullet connectors (they may break if they have been overheating, that's one of my theories about what is killing the stators. To much resistance at the bullet connectors) and get your readings directly from the 3 yellow wires coming out of the engine.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike
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post #3 of 5 (permalink) Old 05-14-2019, 10:02 PM Thread Starter
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If I remember correctly, resistance was 4.5 ohms across all 3 fields, really puzzled about the difference between a,c and b,c
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post #4 of 5 (permalink) Old 05-14-2019, 10:03 PM Thread Starter
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Volts at the battery were 11.9 at idle and 12.4 at 3000
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post #5 of 5 (permalink) Old 05-15-2019, 10:59 AM
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12.4V is way to low at the battery at 3000 RPM. It should be over 14V. It's not charging at all.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike
VN750Rider/Jerry is offline  
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