CK20 starting issue

[Coyote machine]

Agentiron,

For what its worth after doing what has been suggested already if you are not seeing around 14.2-14.5 volts at the battery when the battery is fully charged then I would take the battery to a local automotive garage and have them do a "load Test" on it. THis will tell what is the actual condition of amps NOT volts available to turn over the engine when it has not already been stsarted on any given day. Sometimes one cell will sulfate and leave the bettery reading ok volts but it is AMPS that make the 'juice' to turn over the engine when cold or to run the loads you may put on the battery when the tractor is in use- for instance lights, etc.
Batteries have a finite life and will be dead sooner if let sit over the hot or cold months. If it fails a load test you need a new battery.

Good luck- post back results.
Try an Interstate Battery if available in your area. I've had good luck with them and used to sell them when I had my foreign auto shop years ago.

Coyote Machine

 

[Dmace]

For what its worth after doing what has been suggested already if you are not seeing around 14.2-14.5 volts at the battery when the battery is fully charged then I would take the battery to a local automotive garage and have them do a "load Test" on it.

A 12 volt battery alone is not going to produce 14.2-14.5 volts, that is the alternator creating the voltage. A 12 volt battery fully charged is only going to expel about 12-12.8 volts. Typical stores like NAPA and VIP Auto will test batteries, alternators and starters for free.

 

[Coyote machine]

Dmace,
You are correct in saying that the battery will not produce 14+ volts. However, I should have said if one checks the voltage at the battery when it is fully charged and the electrical system is function correctly, including of course the alternator, the reading at the battery posts should be between 14.2-14.5 volts. This assumes the alternator is doing its job and the voltage regulator is doing its: keeping the voltage from going above/(below) the preset limits of around 14.5 volts on the high side. If either the voltage regulator or alternator is malfunctioning then all bets are off.
I agree too that some stores will test things like batteries free, but will they and can they do a load test on the battery? That test will tell if the battery is good or bad; and I don't know if they perform that test in particular since it requires somewhat different equipment to simulate a load on the battery. Maybe you know if they do them or not?

 

[Dmace]

The reason I said that is it sounded like you were implying that if you do not see over 14 volts at the battery then you should test the battery. If you are not seeing that kind of voltage then you should check the alternator not the battery.

 

[Coyote machine]

Dmace,

What you said- {sorry it was late last night and I wasn't getting across what I meant to say...}.
Yes, less than 14+ volts charging system is malfunctioning

 

[Highbeam]

For those of us that have actually put a voltmeter on our batteries with the engine running, what was the voltage readout at the battery?

Not all regulators are the same and not all are set to put out 14.5 volts to the battery. Mine is only putting out 13.4 volts or so and while I know that I would prefer to see over 14, perhaps the tractor's system is different. Didn't the Kubotas use some sort of dynamo?