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When you try to turn over engine with key it turns over slowly and stops? It acts like starters not working properly? If this sounds like it and it's a single cylinder Briggs and Stratton engine ohv's your valve specs are off they need to be checked and adjusted every 200 hrs. If you need further assistance let me know. Wadembly@aol.com or call 831-578-4034 pacific standard time ( California)
By crossing the terminals on the solinoid you have taken this component out of the picture, so the problems has to be in the engine or the starter, if the auto deco valve in the engine is not working the engine will be sluggish to crank over.
If you hear a clicking sound but no joy on the starter, you may have a bad starter solenoid. Follow the positive cable from the battery, it should end up connected to the solenoid. The post the battery cable connects to should be adjacent to another post where the cable connected to that post leads to the starter, you can check by carefully crossing the two posts with a small screw driver or some other piece of metal to see if the starter will turn over, (be very careful not to touch any part of the body of the mower with the screw driver). if the motor turns over with the crossing of the posts but not with the key, then more than likely that is the problem. Replace the solenoid. NOTE: you do not have to have the key turned on for this test.
soliniod should have two small terminals one should get power when turn key to start position the other runs through ground curcuit which runs through break and pto switch most tractors wont start with out break switch working properly i would start with that first the i would go to pto switch. hope this helps
The battery still may be bad. The fact that it "warmed slightly when being charged" doesn't suggest it to be good - instead it could have high internal resistance in one or more cells. A battery with this failure still measures a good 12V until you put a load on it. I'd take the battery to a battery store, not a lawnmower dealer, and have it tested there with an actual battery tester. If it's bad, replace it. If it's good, then it's probably the solenoid and that means you'll have to replace the starter/solenoid assembly.
The frame of the tractor is the same thing that starter grounds to,so yes ,put the ground any where on the frame or engine block to test the starter.An easier way to test everything is to cross over the large posts on the solenoid with a screwdriver and if it turns then the starter is not the problem.Then you will need to put power from the post on the solenoid that has the battery positive connected to it ,to the post on the solenoid that should come live with the key,if it starts then then you likely need an ignition switch if not you need the solenoid.
According to parts lookup, there are three fuses in the wiring harness. Check these first.
The seat switch connector might be a suspect.
NOT the switch itself, but the two-wire connector attached to it. (Red and Gray wires)
Unplug the connector from the seat switch and look down into the dual-terminal connector.
If you see a small, square plastic "divider" between the terminals, read on. Remove it with pick or plier. (Don't worry about breaking it, we won't be putting it back in.) Located behind the plastic you will find a tiny torsion spring that is wound in a cross shape. Remove and discard that spring along with the plastic divider. Plug the connector back in and try to start unit normally.
If no divider is present in connector, head for the brake pedal switch. Have someone work the pedal and observe the metal tab the "Triggers" the switch-button. These tabs often get bent and do not depress the switch-button far enough for it to make contact. Bend tab as needed to ensure the switch is "made" completely.
If still no-start condition, Turn key to "RUN" (not start) and try the electric PTO switch. You should get a nice crisp "click" at the clutch each time you engage/disengage the switch. If no click, have the battery load tested.
Lastly, check voltage at the solenoid with key in "START" position. On this solenoid you should see two large wires and two thinner wires. We want to find the thin WHITE wire and test it for 12VDC. If voltage is less than 9.5 with key held in the "START position, replace the ignition switch and/or battery.
basically you fixed it youself
if your solenoid is engageing and your wiring is clean and tight from the battery positive to one side of the solenoid and from the other side of the solenoid to the starter?
then you need to replace your solenoid.