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Wisconsin Engines Single cylinder up to V4 engines.

Wisconsin Engines

Strange Points Related Problem With a VH4D


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  #11  
Old 06-28-2018, 07:52:30 AM
rwk rwk is offline
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Default Re: Strange Points Related Problem With a VH4D

I put a VW Bosch coil on a newly aquired VH4D on a hydro seeded and gapped the points to about .016, didnt have any info on it when I got it and we
were trying to get it running, fired right up, has run approx 10 hours so far, now I'am trying to get charging system working,25 amp stator style, believe reg and rectifier are bad, anyone have a fix or work around?
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  #12  
Old 06-28-2018, 08:15:07 AM
I like oldstuff I like oldstuff is offline
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Default Re: Strange Points Related Problem With a VH4D

Like this?
If so, check for continuity between the two wires on the alternator. Nothing to ground. If that's good, go on ebay and find a hefty single phase motorcycle regulator/rectifier for under $20. Two wires from the stator to the rectifier and you then have ~14.5 volts output. Fuse the output at ~20 amps to protect it.
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  #13  
Old 06-28-2018, 06:03:07 PM
rwk rwk is offline
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Default Re: Strange Points Related Problem With a VH4D

Ok, the stator is good, passed both test for continuity, my stator has 3 wires, do I not use the third wire? its red, the other 2 are black assume those are the AC out to reg/rect. Found some Kohler regs rated at 25 amps are those adequate?
Thanks
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  #14  
Old 06-28-2018, 08:32:26 PM
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Default Re: Strange Points Related Problem With a VH4D

You likely have a 3 phase system. *If all three wires are the same color.
So get a 3 phase bike reg/rec and you're good to go.

Something like this.
https://www.ebay.com/itm/Motorcycle-...kAAOSwhdZaVRUP

https://www.ebay.com/itm/US-Ship-Mot...UAAOSwU9xUMXLD

https://www.ebay.com/itm/Motorcycle-...QAAOSwcj1aN1TG

https://www.ebay.com/itm/12V-Motorcy...wAAOSwmNlZZe9D



Yellows to the stator
Red to battery
Green to ground
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  #15  
Old 06-29-2018, 07:06:37 AM
rwk rwk is offline
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Default Re: Strange Points Related Problem With a VH4D

No, 2 black wires and 1 red, think only the blacks are the AC out of stator, what is the red one for? it was connected to the rectifier white wire, think it should have been connected to the red on regulator. PO had done some fixes, plug was burned to rect. and missing to reg. had some twisted wire and tape repairs. From the repair manual looks like 1 of stator wire goes to regulator assume red to red, then reg and rect are tied together? black to white then to amp meter, no colors listed on the schematic so I'm going by plugs which have color codes.
Like you say think a three wire reg/rect would work just what to do with 3rd stator wire?
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Old 08-26-2018, 08:41:15 AM
RollinK RollinK is offline
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Default Re: Strange Points Related Problem With a VH4D

Following, I'm having the same stator issue with a VH4D. Just acquired this engine, originally had the separate regulator/rectifier set up. Three wires coming off the stator, 2 black and 1 white. Getting a solid 30v AC off the 2 black stator wires. Connected them to the AC inputs on a Kohler 25a Rectifier, no output from the rectifier and the stator wires become hot very quickly. As several other have asked, does anyone know what the 3rd (white) stator wire does or should it be connected to anything?

Ohmed out the stator and it seems good, I'd really like to get this motor charging and could use some help on this one. Thanks Rollin
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