KYKub
Silver Member
I've been lurking and learning from many of you (thanks!) and am now writing my first post. While reasonably handy, I am anything but a mechanic.
I have a new to me Kubota G1900 4WS garden tractor. 917 hours and in great shape. 60" mower and 48" snow blade. When starting, it needs a boost unless it is warm from running recently. The engine turns over fairly quickly but it fails to fire; when I then connect my charger with a 300 amp boost option, it fires right up! I have replaced the battery with a good 500 cold cranking amp battery. I also cleaned the main ground connection at the frame.
I had the guys at Autozone test the battery, alternator, and starter. The test results indicated a good battery, a failed voltage regulator, and "starter current failed." Even though the voltage regulator "failed," the alternator was still producing 13.64 volts.
* I am really confused because even if the alternator was completely dead, that shouldn't affect the starting of the machine, should it? (With a fully charged battery.)
* When I gave it a boost it seemed to work better if I connected the hot lead directly to the solenoid.
* Why would adding a few more cranking amps from my charger make the starter turn faster?
Any advice or testing recommendations would be greatly appreciated! Jeff
I have a new to me Kubota G1900 4WS garden tractor. 917 hours and in great shape. 60" mower and 48" snow blade. When starting, it needs a boost unless it is warm from running recently. The engine turns over fairly quickly but it fails to fire; when I then connect my charger with a 300 amp boost option, it fires right up! I have replaced the battery with a good 500 cold cranking amp battery. I also cleaned the main ground connection at the frame.
I had the guys at Autozone test the battery, alternator, and starter. The test results indicated a good battery, a failed voltage regulator, and "starter current failed." Even though the voltage regulator "failed," the alternator was still producing 13.64 volts.
* I am really confused because even if the alternator was completely dead, that shouldn't affect the starting of the machine, should it? (With a fully charged battery.)
* When I gave it a boost it seemed to work better if I connected the hot lead directly to the solenoid.
* Why would adding a few more cranking amps from my charger make the starter turn faster?
Any advice or testing recommendations would be greatly appreciated! Jeff