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JohnF2015, Small Engine Technician
Category: Small Engine
Satisfied Customers: 1082
Experience:  Owner/Service Technician at S & J Small Engines
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Scotts 1642 lawn tractor s/n GX1642S038929 with kohler

Customer Question

Scotts 1642 lawn tractor s/n GX1642S038929 with kohler CV16-43526 engine that will not charge battery. I need a to know where is the regulator/rectifier and the specs. I also would like to find wiring schematic for this lawn tractor
Submitted: 11 months ago.
Category: Small Engine
Expert:  Wayne replied 11 months ago.

Hi I'm Wayne

I will help you with this

here is a video for your engine to replace the regulator

click here

I hope this helped you

If this helped you

Please rate my answer 3 or more Stars

If more info is need use reply button

Not Poor/Bad Service

Customer: replied 11 months ago.
this video is not the engine i have CV16-43526 kohler S1642 s/n GX1642S038929
Expert:  Wayne replied 11 months ago.


I am sorry , I will look again

Expert:  Wayne replied 11 months ago.


That is the same regulator for


Customer: replied 11 months ago.
check for Scotts S1642H made by John Deere S/N GX1642S038929 with Kohler CV16-43526 John Deere 16HP(11.9KW) engine
Expert:  Wayne replied 11 months ago.

Thank you for that

That is what I did , JD makes for Scott

would you like the JD P/N

Customer: replied 11 months ago.
can i get the information from first question where is regulator/rectifier, wiring schematic, specs,
Expert:  Wayne replied 11 months ago.


I am going to opt out of this

and post back to the board for another expert

Don't reply or rate me as it will lock the question back to me

Expert:  JohnF2015 replied 11 months ago.

Hi, my name is***** will be assisting you.

You are correct in that the video is not correct for your engine.

Your specific engine does not have a voltage regulator on it according to the information that is provided by Kohler utilizing your model and spec number from the engine.

The alternator or magnets in the flywheel may be bad causing your problem.

You stated that you are getting 28 VAC from the white wire and only 3.9 VDC from the red wire which tells me that the DC side of the alternator is not functioning properly or has become shorted out. If the magnets in the flywheel were bad then the AC volts on the white wire would also be affected and based on your information that doesn't seem to be and issue.

I am including a diagram of the electrical system on your engine. You will notice that it does not include a voltage regulator in the system.

I will be glad to answer any other question(s) that you may have.

Thank you it has been a pleasure to assist you.

Please take a moment to rate your experience.