What is this electrical lead on Briggs and Stratton 1150 250cc Engine - Snowblower Forum : Snow Blower Forums
 
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post #1 of 8 Old 11-17-2019, 08:49 PM Thread Starter
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What is this electrical lead on Briggs and Stratton 1150 250cc Engine

I just got a Briggs and Stratton 1150 255cc engine for a repower. It has an electrical connector hanging free with red/black wire.

In the linked picture it is coming out right above the starter

What is this for?
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post #2 of 8 Old 11-17-2019, 08:55 PM
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Its the positive lead and ground wire coming from the stator. It is used to power lights, handwarmers, or other electrical requirements.

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2013 Ariens P24
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post #3 of 8 Old 11-18-2019, 02:56 AM
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Watch out, that looks like a "Dual Circuit" alternator judging by the white terminal and black and red wires. If it is, the Red wire is 2-4 amp D.C. for battery charging. The Black wire is 14 volt 5 amp A.C. for lights.
If the red wire had an inline diode heat shrinked in it, that would then be D.C. for battery charging, The Red without a diode would be A.C. on that stator. That is a Non Regulated stator.
If the red wire has the diode, then the black wire would be the A.C. wire on the Dual Circuit stator.
I did not see the diode on the wire harness, the diode should be right where the white terminal connector is located.
If you had a yellow wire, that is A.C.
Be careful if you hook the red and black together thinking red is positive and black is ground, you will short out the stator and burn it up.
Check your wire output for both A.C. and D.C. before you hook anything up to them. Hook the test terminal to each wire and ground, checking both A.C. and D.C.. Do one terminal at a time, red, then black wire.
Now that red wire could have a diode way back in the harness, but it should be right at the wire connector terminal.
Unless you got a discount store engine that doesn't have the diode in the harness due to a manufacturing mistake, check your output first before hooking anything up to it.
A Green wire would be a ground wire.

Last edited by ST1100A; 11-18-2019 at 03:47 AM.
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post #4 of 8 Old 11-18-2019, 11:49 AM
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You might be able to find what you need here. https://www.briggsandstratton.com/eu...t/manuals.html
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post #5 of 8 Old 11-18-2019, 03:28 PM
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If you Aren't Going to use the Alternator, Don't Worry about it.
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post #6 of 8 Old 11-18-2019, 09:29 PM
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Per the B&S Engine Alternator Repower Guide: https://www.google.com/url?sa=t&rct=...5F0_duuksKI8Sm , @ST1100A is correct: Black is A/C and Red is D/C (pages 10 & 11). Lots of valuable info in this guide!

Last edited by tabora; 02-18-2020 at 11:26 PM.
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post #7 of 8 Old 12-01-2019, 09:23 PM
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I have the 14.5 GT version of this engine. It has the same Red and Black connector coming out from the flywheel. Using my multimeter, I found that the engine was producing 12.6V AC.

Bolens 824 (re-powered with Briggs and Stratton 14.5GT snow engine)
Simplicity 860 (1691900-17825) - (Backup machine)
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post #8 of 8 Old 12-01-2019, 09:44 PM
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Quote:
Originally Posted by Sblg43 View Post
I have the 14.5 GT version of this engine. It has the same Red and Black connector coming out from the flywheel. Using my multimeter, I found that the engine was producing 12.6V AC.
I agree... Just wired up new engine and it was as follows.......

Red wire was AC 12 volts or so

Black wire was ground

Kinda misleading using those colors, that's why you always check before wiring anything up.

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Ariens 24" 924117 Modified Pro 342cc / 15.50 GT.. Currently Under Construction and testing trials commenced .......
Ariens 32" 924044 Modified Pro 342cc / 16.50 GT
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