[villagetinker]

You may have seen my previous "fix" for the overcharging on some Yamaha golf carts. Well, a few months ago Mike a collaborator on the previous fix, suggested just moving the voltage regulator sensor wire to the solenoid. Well, he was RIGHT.

Here are the details:
1. Find you voltage regulator, small silver box with typically a blue three wire connector. I have seen these mounted is various locations depending on the year the cart was built.
2. Cut the RED/WHITE with as long as possible from the regulator.
3. Strip the end of red/white wire the connects to the voltage regulator and using a suitable lug connect to the large lug of the start solenoid. THIS WILL BE THE HEAVY GAUGE WIRE GOING TO THE STARTER/GENERATOR.
4. The other end of the red/white wire can be taped up.
5. Connect a voltmeter to the battery, place the golf cart in NEUTRAL, and start it. The voltage should go from slightly about 12 VDC to around 13 VDC then as you increase the speed of the engine it should go to 14.4 or 14.5 VDC.

This is the very simple fix and avoids the previous more complicated fix. I just did this today on a neighbors 2014 cart and it worked perfectly.

Background: some not all Yamaha golf carts have a 2 to 3 volt drop from the battery to the dash, and this is where the standard voltage regulator connection is made. The result is the battery is overcharged 2 to 3 volts which results in shorter battery life.

Hope you find this useful.