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with a volt meter set to DC, pull the wires off of the starter solenoid coil (the small wires) and check for 8 - 12 volts DC at the wires when the key is turned. A poor connection at the solenoid coil will cause slow turning engine cranking or none at all.
If you have 8 - 12 volts there check for voltage to ground on the large cable that goes from the solenoid to the starter motor, one probe on the cable and the other on ground or ( - ) at the battery. Turn the key to start, if you have voltage to the starter motor but it does not turn loosen and retighten the mounting bolts to the starter motor and if that does not help do the same for the engine to ensure you have a good ground. If none of that works your starter motor needs to be replaced, if you have no voltage to the motor the solenoid or battery connections are faulty.
You can also quickly test starter health by conecting a set of jumper cables to a good battery, clamp the neg. to the engine block anywhere and tap the pos. to the starter cable connection from the starter solenoid, if the engine spins over your starter is healthy and the issue is certainly between the key switch and the starter solenoid.
Check all battery connections... Follow the Positive cable (usually red) to the starter solenoid. Check connections. There should be at lease 3 wires attached to the solenoid, Battery cable IN, Battery cable OUT and a Smaller wire from the ignition switch. Test to see if you have power at the small wire when the ignition with(key) is turned to the START position. If there is no power, check the Seat kill switch and the clutch pedal switch. On most tractors, the clutch pedal has to be depressed to start the engine. If there IS power at the starter solenoid, check the Battery OUT cable. If there is power at this cable, check your starter. If there is no power at the Battery OUT cable, and there is power at the ignition wire, replace the starter solenoid. Hope this helps...
Does it do it every time? First try and turn your engine by hand counter clockwise and try to start..sometimes the engine stops on a compression stroke and Is Under too much pressure for the initial start,..happened to my cub cadet laast week...,,if it turns and still gets a click...test or charge your battery..if it is ok you either have a bad solenoid or starter...first find the solenoid and croosing the two big post..it should spin the engine..if it spins it is your solenoid if not the starter is bad...not a hard job for either...both can be purchased at your local mower place...giid luck
Check to see if the solenoid is getting power. On the solenoid there are 3 wires. Two big, one from the battery, the other going to the starter. The 3rd wire is what activates the solenoid. Using a test light or volt meter. See if its getting power on the small wire when you turn the key. If no power, ignition switch, safety switches or fuses. If you are getting power replace the solenoid. If you have 4 wires. Test the two smaller ones.
Bad starter motor. Most likely to cause slow turning over of engine,. The starter motor brushes wear out over time. Cost for new starter range from $40-$80 depending on model and year of engine. Usually a fairly simple DIY R & R if you are handy and have basic tools.
Even though you say you have a new battery be sure that it is fully charged. Also you can try jump starting with cables from car.
The mower battery cables are notoriously undersized. Reworking cables with larger size (gauge) often helps. Can made up and purchased from full service auto parts store such as NAPA.
Last, bad starter solenoid. Not likely since motor does turn, but bad solenoid can stop full current from reaching the starter.
I hope this helps. Let me know in comment section how it turns out.
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Alternator has little to do with starting. The alternator job is to charge the battery. If it is alternating (making power) the battery is charged. Check with a volt meter - should be a minimum of 13 volts up to 15 volts at the battery when the engine is running. If it is not providing power, the alternator may not be putting out. However - big however, if the battery is dead, the alternator cannot make power as alternators are not self-exciting. Charge the battery if necessary before doing the test. Battery at rest should be at least 12 volts.
The battery ... do you know the voltage at rest? Have you don't a hydro test of the cells? Good cells should read 1200 on the hydro test - adjusted for temperature. How old is the battery? Good batteries last for about 5 years. Older than 5 years ... battery is suspect. A full service auto parts place can test this for you. Take the battery to them. Terminals all clean??????? Very important.
When you try to start the vehicle, is voltage applied to the starter side of the solenoid? Check from the starter side cable connection to ground when you have the key moved to the start position. Voltage should go away with the key in RUN or OFF or ACC.
As a last ditch effort, remove the starter. There are two bolts that hold it to the bell housing and there will be a large cable and possibly a small wire bolted to the starter. Place the starter on the ground. Provide power to the starter power terminal and a ground (anuwhere on the metal body) with a set of heavy duty jumper cables. Does the starter run? As a last last ditch effort to find the status of the starter - take it to a full service auto parts store and have it tested..
If there is no voltage on the start side of the solenoid with the key in the start position, the solenoid is suspect.
This is a lot ... go see what you can discover. Thanks for your question @ FixYa.com
The best advice here is to put your battery on charge, and, while it is charging, remove each connection, and clean the terminals back to "bright and shiney". The clicking noise is probably the solenoid trying to pull in to provide power to the starter. There also sounds like the comnnection to the starter needs to be removed and cleaned. If this connection is dirty or loose, it can arc and smoke without cranking. Also, if the terminals at your solenoid are corroded, the motor cannot recharge the battery on the run, and loss of power to the battery will result. Clean your connections, and try again!
This should correct your issues. In extreme conditions, it may be necessary to replace your wire from the solenoid to the starter, if it is significantly deteriorated, but I'd clean it all up first.
Best regards, --W/D--