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#16 IamSherwood OFFLINE  

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Posted December 06, 2011 - 08:41 PM

Ok, now I'm stumped. Got them taken apart. I'm not much of an engine guy, and even less of an electrical guy.
In the box is the good stuff off the MF12.
My question is, how do I wire that up to the voltage reg, and starter/gen?
And I'd like to use that plastic key switch, and a push button to kill the engine.

Any and all help appreciated.
Thanks

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#17 DH1 OFFLINE  

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Posted December 06, 2011 - 08:58 PM

Here's 2 wiring dia.
1st one is late model Massey with SSI and electronic reg.
2nd is starter generator setup with mechanical reg.
66 MF10 001.jpg

If you use the late model stator coil/SSI setup with the starter/generator it can work.

The stator coil has 4 wires on it
2 wires for the charging circuit, not going to use just tape them up so they don't ground out or touch each other.
1 wire goes to the key switch, grounds out the ignition to kill the spark, that wire never connects to 12volts.
1 wire, shortest one, for SSI, goes to SSI unit.

Wire up S/G as shown and it'll work.

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Edited by DH1, December 07, 2011 - 05:46 AM.
correction

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#18 MH81 ONLINE  

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Posted December 06, 2011 - 10:24 PM

Big thing is to MAKE CERTAIN there is NEVER 12v going to the SSI. Disconnect the kill wire & verify this with a test light or meter with key in all positions before you install your new components.

As for the charge wires on the "good" pile, I would also leave them safely disconnected and just use the s.gen for charging as all that wiring is in place (I assume) and working. (?)

I would also replace the switch. But that's just me.
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#19 ducky OFFLINE  

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Posted December 06, 2011 - 11:17 PM

Will
Doug has the schematics there and if you are not sure please ask before we hook up those wires.

MH81 Big thing is to MAKE CERTAIN there is NEVER 12v going to the SSI. Disconnect the kill wire & verify this with a test light or meter with key in all positions before you install your new components.

Also watch this as you could fire a nice SSI.
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#20 IamSherwood OFFLINE  

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Posted December 07, 2011 - 08:58 AM

I just want to confirm that I got this right, before I do it.
Thanks guys

Oh yeah, the 2 bottom wires went to the voltage reg, and the upper one went to the "C" terminal on the ignition switch on the mf12.

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Edited by IamSherwood, December 07, 2011 - 09:32 AM.


#21 ducky OFFLINE  

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Posted December 07, 2011 - 12:07 PM

the upper one went to the "C" terminal on the ignition switch on the mf12.

The upper one goes to the SSI and to the push button switch that will ground it to shut the engine down.
What is the "C" terminal? I can not remember on a Starter/Gen switch.
Yes the wires with the plug go to the Reg.
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#22 MH81 ONLINE  

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Posted December 07, 2011 - 12:33 PM

I think the C is charge.
as for verification of which of the 3 wires should be grounded to kill... better follow it to the key on the 12. I'm not certain which one in the harness it is, want you to be safe.

Edited by MH81, December 07, 2011 - 12:39 PM.

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#23 IamSherwood OFFLINE  

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Posted December 07, 2011 - 06:58 PM

Thanks a whole bunch guys for the help.
All is good, and running well.
I took it for a little spin this afternoon.

Thanks
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#24 MH81 ONLINE  

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Posted December 07, 2011 - 07:03 PM

:dancingbanana: Now :dancingbanana: that :dancingbanana: is :dancingbanana: great :dancingbanana: news :dancingbanana:

Glad to hear all is well. Thanks for the update and the pictures. This will help the next guy.


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#25 IamSherwood OFFLINE  

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Posted December 08, 2011 - 06:45 AM

Just a side note. The parts where not an exact swap over. Everything was good with the bearing retainer, stator, flywheel, and SSI unit.
But, the new(out of MF12) flywheel, came with ring gear, so the flywheel shroud didn't want to fit. In order to use the shroud that came off
the MF, I would have had to swap out the head as well.(different mounting holes) Also, the throttle cable clamp was wrong.
So, I got creative with the tin snips and hammer, and altered the shroud to fit over the ring gear.
It's not pretty, but then neither is the rest of the gt. But it works, and as soon as it snows, I'll put the skiis on and see how that flies.

Thanks again for the help.
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#26 KennyP ONLINE  

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Posted December 08, 2011 - 07:50 AM

Glad you got it going, Will. I look forward to seeing the pics. Do you have wheel brakes to help with steering with the skis on? Might need something to get them turning when at speed. Otherwise they may keep you going straight.

#27 Gary400 OFFLINE  

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Posted December 08, 2011 - 06:46 PM

Will it work if I remove the ignition wire from the key switch, and put it to a push button switch, that goes to ground?
To shut down one would push button till engine stops, and then turn key off.

all you have to do is pinch the plug wire between your thumb and finger and pull , its that simple :laughingteeth:




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