Main fuse headlight and running problems - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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Where does this wire go?
Includes Electrical mods, Lights, Stator,
Rectifier, Diagrams, etc

 
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post #1 of 6 (permalink) Old 08-05-2012, 10:02 PM Thread Starter
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Main fuse headlight and running problems

Ive blown a few main fuses 2 headlights and a battery. Once in a while it starts bogging and I have like no power. Cant find a short but I put a multimeter to.the battery. At idle its about 17 volts. And at high rpms its up in the 18s. I know it should be around 14. What is the problem? Sometimes it rides like new but ive been stranded by the main fuse blowinf twice when I put a fuse in it pops. If I let it cool down a couple hours I put a fuse in and its fine. Its an 86vn750
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post #2 of 6 (permalink) Old 08-05-2012, 10:25 PM
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Almost sounds like a going/gone R/R. I'd check connectoins at the regulator and stator and do a resistance check on both. Would be a good time to relocate the R/R and get it out of the "oven" if the problem is indeed the unit.

87 vn750at least that is what the frame #'s say
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post #3 of 6 (permalink) Old 08-05-2012, 10:37 PM Thread Starter
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Yea I heard bein above the goat belly cooks those. It looks pretty corroded too. I dont think it would be the stator cause the battery charges fine. Ill have to replace the r&r before it cooks my whole bike. Do you think that would be causing it to bog down randomly too?
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post #4 of 6 (permalink) Old 08-05-2012, 10:47 PM
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my guess is that it's cycling from overcharging to undercharging, it would bog during the undercharging. I'm sure I will be corrected by other members if my thinking is off.

87 vn750at least that is what the frame #'s say
"Squirrel Bike" aka Jersey

Rat bike with a good PR agent

shaved and coastered
2 into 1 exhaust
rear 170 and front 110
Relocated R/R
custom dash with voltmeter
Spitfire windscreen
Plutonium plugs
Recovered seat without "butt hammers"
More to come
Praise to the Parts Goddess Crobins for needed things

When someone tells me "Great minds think alike" all I can think is "You Pervert"
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post #5 of 6 (permalink) Old 08-06-2012, 01:03 AM
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if not replaced soon it could (i have read on here) ruin the stator so i would change it fast if it were me
like 65 bucks on ebay

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post #6 of 6 (permalink) Old 08-06-2012, 03:40 PM
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based on the year of the bike and the fact that you mentioned corrosion.....

take your time and check and clean ALL connections in the wire harness....and I mean ALL including your grounds to the frame.

Connections do open up when heated if there is corrosion, oil, fuel, or any other contaminants present.

clean and polish all contacts and clean them off with contact cleaner. Then apply some dielectric grease to protect them before reconnecting the plugs or contacts.

Slim also posted a worksheet to test your Regulator/Rectifier (R/R). You should also test your stator while you are at it.
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