Question about Craftsman 17.5 hp 42 in. Deck Lawn Tractor - CA Model

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I have a chraftsmen rideing mower model number 917 271011 has two wires coming from stator one wire is berned off put back together and burned off again does this model have voltage regulator 15.5 kollar

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It has the ammeter for the charging system
i have a chraftsmen rideing mower model number 917 - 9431897.png

Posted on May 31, 2010


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I need a wiring diagram, mainly from ignition switch to coil/stator.

pull the black ground wire off from the coil,try to start the motor,if it starts,put the wire back to shut it off,,,one or all of your safety switches is bad,you can bypass all the safety switches(as long as you dont care),by putting a switch connected to the coil and the other side,a ground,if you want safety switches then you have 3 to choose from to replace,2 stop the mower from starting and the 3rd stops it from running if it did start,here is a 42 inch,pretty much the same,you didnt tell me what model or make,

May 05, 2015 | Garden

1 Answer

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

1 Answer

Charging system poulan riding lawn mower

If a single cylinder ohv Briggs its likely a 3 amp unregulated stator. This is all a guess without engine numbers. There are 2 wires coming out from under the flywheel to a white plug. One of the wires has a length of heat shrink over a bulge just before the plug. This is a diode. The diode changes the ac output of the stator to dc and charges the battery. The other wire remains ac and powers the headlights when the engine is running. Test the charging system with a dc voltmeter, positive lead on the wire with the diode, negative lead to a good chassis ground. With engine running at 3/4 throttle you should get a reading of at least 12.7 volts.
If any other configuration I would need model, type, and code off the motor to help diagnose. Also wondering why you question the charging system since they are pretty much bullet proof.

Aug 24, 2014 | Garden

1 Answer

Ok have a ztr toro mower it's a 74330 it had a 16hp briggs 286h77 replaced it with a 19.5 hp briggs 31p677 fit perfectly until the wiring. Plugged in what I thought was right and walked away a few min....

Buy a test meter and keep digging. Go through the wiring CAREFULLY - don't guess it! Get a wiring diagram or make one. Keep the polarity correct or you'll burn out something else.

Dec 09, 2013 | Garden

1 Answer

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.

Sep 09, 2010 | John Deere Garden

1 Answer

How do i check the charging system?

You can't check the charge system by taking off a cable,you need to use a volt meter.If the tractor is running between 13.5 and 15 volts then you are ok.If the tractor is charging above 15v and needs to be boosted then you need a battery.If the battery never gets above 12.6 v then the alternator or regulator is defective.The only way to know if it is the stator or the regulator is to find the wires that come from the stator and see if they will put out more than 20 volts a.c. at half throttle,if so the stator is good.Next step is to check the regulator to see if at least one wire goes to the battery live[12volts],if so replace the regulator,if not repair the wiring.

May 16, 2010 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

How much volts should my stator put out on (18 h.p. briggs intek)

If it is the two yellow wire stator it should put out at least 28 ac volts across the two yellow wires, if it is a single red wire it should put out at least 14 dc volts between red and any engine ground, both these readings are with the engine running full speed at (least 3200 rpm)

Aug 12, 2009 | Briggs & Stratton Garden

1 Answer

How can I detemine type of stator in my mower without disassembly

If you have two wires coming from under engine shroud, a black and red, plugged into a connector with a white and black wire going to the mower, It's a Dual Circuit alternator.

Jun 29, 2009 | Garden

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