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I have a 1985 year model 116 John Deere mower. My charging system is not working. I checked the single wire coming from the stator and it shows continuity or ground. Is this normal?

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It should have continuity. This provides main power to coil and spark. This will also in return lead to your cdi and charge your system as well.

Posted on Sep 24, 2009

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I need a diagram of the john deere 116 hydrostatic mower deck diagram Try that link ,if it doesn't work you can go to and do a model part search

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I have a charging problem with JD L155c lawn tractor. The battery is new and the voltage to the battery is 12 volts. Not enough to charge the battery. How do I check the ac voltage & what should the...

There are several possible Mowers of the "L" 155 versions.
John Deere LA155 garden tractor lawn mower. These stopped being made in 2010 (they started production in 2009, and so enjoyed a run of 2 years on the assembly lines). The JD LA155 is powered by a Briggs and Stratton 2 cylinder, V twin engine. This engine is 0.656 liters (40 cubic inches) in size and produces 22 hp.

1998 - 2001 LT Series
John Deere LT155 Engine: Kohler 1-cyl gasoline

2006-2006 L155c, This series was produced only in 2006.
Briggs & Stratton gasoline, 2-cylinder air-cooled, 724 cc [44.2ci ], 25 hp

Model 445777-0168E Code 021125YC, these are the engine numbers from a 25 hp twin cylinder, B&S.

Notes on these engines from parts supplier
Briggs and Stratton 445777-0231-E1 Engine: The proper flywheel part number and/or the alternator magnet size will determine the alternator type or output.

This 25 hp engine has 3 different possible alternators, standard circuit, dual circuit, tri-circuit. I would need the exact engine model numbers in order to precisely answer your question. Often mower models have choices for the engine they come with. In this situation the engine model is more important than the model of the mower.

Testing an alternator is fairly simple; all you need is a multimeter for testing.
  1. Disconnect connector from stator.
  2. Set multimeter for AC volts.
  3. Attach RED test lead to either pin on stator side of stator connector. (On single wire leads, attach RED test lead to the single pin.)
  4. On two wire lead models, attach Black test lead to the other pin. On single wire stator connectors attach the Black test lead to the engine ground.
  5. Prepare the lawn tractor for engine start (set parking brake, blade off, etc). Start engine and run at full throttle.
  6. Check output. Output for engines of this general size run in the 30 to 50 volt range. For instance the B&S V twin 22 hp AC output at full throttle is 30 Volts minimum. Other B&S on these machines spec 40 Volt minimum.
If your voltages are not in the manufacturers range, or non-existent, your stator is partly shorted or completely burnt out (open circuit). Either way you have to replace it.

A. In the picture is a single lead stator connector.
B. In the picture is a two wire stator connector.

Mar 15, 2015 | Garden

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I have a John deere 260 riding lawn mower and the battery doesn't charge and when I disconnect thebabattery it dies

Check the charging stator usually under the fly wheel. Check wiring first before condemning the unit.

Aug 22, 2013 | John Deere Garden

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Check a stator and diode

Your diode. Place test leads on both sides of diode. If beep once, its good.

Jun 09, 2013 | Garden

1 Answer

The charging system is not working new battery keeps going dead. How do I troubleshoot to find the real problem?

First off ,i'm only going to give you a general test to do,this is because you did not give an exact model so i can't give an exact answer.Most lawn tractors have a stator,under the flywheel of the engine and the wireing will come out from under the engine cover.Locate that harness(it should have 2 wires in it,sometimes three)and then follow the wires to a plug.Unplug the wires and with the engine running,set your multi-meter on a/c voltage and with the engine idling you should have over 20 volts of power coming out of the stator,if not,replace the stator.If you have power coming out of the stator the next thing you need to check is the power supply to the regulator,keep following the harness and it will lead you to a square box(the regulator) with no less than three wires in it.One of the wires should have 12v dc at all times,if so replace the regulator,if not repair the wireing.Let me know if this helps,if not please give me a tractor model number and the results of the above tests.

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1 Answer

John deere 116 lawn tractor

Call any John Deere dealer directly and they will tell you.

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1 Answer

John Deer riding mower

Here is a link to John Deere website for this model, it states that it has a 16 amp charging system. It also has the phone numbers listed for contact, and requesting the manuals for this mower.

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