still not charging

rherzner · 11-06-2011, 07:25 AM

my yammy g16 still is not charging and i put new brushes in the starter generator and my meter reads 12.6 and when i throttle it up half way the reading gets lower any one have any ideas on what to do next ?????

scottyb · 11-06-2011, 07:55 AM

Test the generator out put, if it puts out charge voltage during the test replace the voltage regulator

scottyb · 11-06-2011, 07:59 AM

Yamaha starter/generator tests are here in this thread... http://www.buggiesgonewild.com/gas-y...ont-start.html

bigstik40 · 11-06-2011, 08:05 AM

You may have voltage regulator problems. Your next step would be to pull the connector off the VR. Check that you are getting +12 v. at the r/w regulator wire with ign. switch on and pedal pressed. If ok, then check if the starter/gen is capable of generating. Do this by momentarily grounding (connect it to bat -) the green wire at the voltage regulator connector while running the cart in neutral. You should monitor bat. voltage while doing this. This is the "full field" test and should result in a fairly high (16.5-17.5 v) voltage at the battery (if the gen. is ok). Do this only long enough to obtain a reading. If the cart is giving this high voltage, pretty good chance VR is shot. If it isn't, you need to check the generator field with an ohmmeter (should be around 5 ohms). Check back with results for more info. Good luck - RAY

bigstik40 · 11-06-2011, 01:08 PM

Sorry, Scotty. We were typing at the same time & you are faster!!!!

-RAY

rherzner · 11-13-2011, 05:55 AM

ok ray and the rest of you out there thanks, it will take a while to do the test being winter is here. i will let u know the cooled outcome. thanks again,

rherzner · 11-14-2011, 06:08 PM

ok ray it looks like i'll be getting a v.r. every thing that u told me to check points in that direction i,ll let u know if it works when i find one

thanks again.

bigstik40 · 11-14-2011, 10:20 PM

Glad you found the problem but sorry your regulator is bad

. They are a bit spendy, for what they do. Some day I want to get my hands on an old one and take it apart to see what makes it "tick". A lower cost alternative may be out there somewhere. RAY

rherzner · 11-17-2011, 06:32 PM

well give me an address and ill send u one when i get my new one i appreciate the help thanks again ,ray

11-06-2011, 07:25 AM	#1
rherzner Not Yet Wild Join Date: Sep 2011 Location: cincinnati ohio Posts: 49	still not charging my yammy g16 still is not charging and i put new brushes in the starter generator and my meter reads 12.6 and when i throttle it up half way the reading gets lower any one have any ideas on what to do next ?????

11-06-2011, 07:55 AM	#2
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: still not charging Test the generator out put, if it puts out charge voltage during the test replace the voltage regulator

11-06-2011, 07:59 AM	#3
scottyb Happy Carting Join Date: Dec 2007 Location: Southern California Posts: 73,419	Re: still not charging Yamaha starter/generator tests are here in this thread... http://www.buggiesgonewild.com/gas-y...ont-start.html

11-06-2011, 08:05 AM	#4
bigstik40 Gone Wild Join Date: Sep 2010 Location: Erie, Pennsylvania Posts: 989	Re: still not charging *You may* have voltage regulator problems. Your next step would be to pull the connector off the VR. Check that you are getting +12 v. at the r/w regulator wire with ign. switch on and pedal pressed. If ok, then check if the starter/gen is capable of generating. Do this by momentarily grounding (connect it to bat -) the green wire at the voltage regulator connector while running the cart in neutral. You should monitor bat. voltage while doing this. This is the "full field" test and should result in a fairly high (16.5-17.5 v) voltage at the battery (if the gen. is ok). Do this only long enough to obtain a reading**. If the cart is giving this high voltage, pretty good chance VR is shot. If it isn't, you need to check the generator field with an ohmmeter (should be around 5 ohms). Check back with results for more info. Good luck - RAY

11-06-2011, 01:08 PM	#5
bigstik40 Gone Wild Join Date: Sep 2010 Location: Erie, Pennsylvania Posts: 989	Re: still not charging Sorry, Scotty. We were typing at the same time & you are faster!!!!-RAY

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11-13-2011, 05:55 AM	#6
rherzner Not Yet Wild Join Date: Sep 2011 Location: cincinnati ohio Posts: 49	Re: still not charging ok ray and the rest of you out there thanks, it will take a while to do the test being winter is here. i will let u know the cooled outcome. thanks again,

11-14-2011, 06:08 PM	#7
rherzner Not Yet Wild Join Date: Sep 2011 Location: cincinnati ohio Posts: 49	Re: still not charging ok ray it looks like i'll be getting a v.r. every thing that u told me to check points in that direction i,ll let u know if it works when i find one thanks again.

11-14-2011, 10:20 PM	#8
bigstik40 Gone Wild Join Date: Sep 2010 Location: Erie, Pennsylvania Posts: 989	Re: still not charging Glad you found the problem but sorry your regulator is bad. *They are a bit spendy, for what they do.* Some day I want to get my hands on an old one and take it apart to see what makes it "tick". A lower cost alternative may be out there somewhere. RAY

11-17-2011, 06:32 PM	#9
rherzner Not Yet Wild Join Date: Sep 2011 Location: cincinnati ohio Posts: 49	Re: still not charging well give me an address and ill send u one when i get my new one i appreciate the help thanks again ,ray

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