Question about Yamaha V Star Classic Motorcycles
Posted by Anonymous on
Hi, Anonymous in order to check out any main electrical system, you have to start with a fully charged battery 12.5 volts or better, and be able to pass a load test if necessary.
1. Check battery terminals for damage or corrosion, check battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
2. Check the voltage drop at the battery when you hit the starter button, anything below 9 volts you might have a faulty battery.
3. Check voltage at the battery with the bike running at 3,600 RPM should be 14.3 to 14.7 volts. If you are not getting these numbers, you might have a faulty voltage regulator.
4. Make sure voltage regulator is "GROUNDED" and functioning properly, watch the video below on how to test a voltage regulator.
5. Unplug the connector to the alternator and hook your multimeter leads to the alternator (pin/socket selection does not matter) set the multimeter to AC volts, at an idle the multimeter should read 16 to 20 volts AC. at 2,000 RPM 32 to 40 AC volts, 3,000 RPM 48 to 60 AC volts. If you are not getting these numbers, you may have a faulty rotor, follow step 6
6. Set the multimeter to OHM'S, connect one lead to the alternator (any pin/socket) and the other to a ground, the multimeter should read infinity. Connect both leads to the alternator multimeter should read 0.1 to 0.2 OHM'S. If you are not getting these numbers, you have a bad stator.
7. Check all wiring in the charging circuit for worn or chaffed spots and all wiring connectors in the circuit for corroded, broken, or loose pins/sockets, which is the # 1 offender.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Battery not Charging Yamaha Star Forum
98 00 Yamaha XV650 Star Service Manual XVS650 Moto Data Project
OEM parts for Yamaha
Posted on Jun 01, 2016
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Posted on Jan 02, 2017
i'm not sure if you are saying how to access it. if you can... just unhook the battery.... attach the charger to it ... be sure you have the polarity correct.... after charging it for few hours.... hook the battery back up.... start up the bike... and let it charge the battery the rest of the way
Posted on Mar 17, 2009
under the left side of the gas tank you will see i black knob/screw at the end of what looks like a hose. the knob faces the rear of bike. that adjusts the idle. its real easy to find and the only adjustment you can make to the carbs.
Posted on Apr 02, 2009
SOURCE: battery keeps going dead
Hi and welcome to FixYa,
To your query, there are 2 major components of the charging system:
A common problem with a VStar is burned, pitted or corroded terminal pins/connectors from the stator to the regulator.
Good luck and thank you for asking FixYa.
Posted on Sep 05, 2009
Have your Regulator/rectifier checked , and have your ststor checked also . Both are not hard to fix , regulator about 15 mins and ststor about 45 mins .
Posted on Apr 04, 2010
If the battery was dead for a decent amount of time, it's shot. But if it's not the battery and you checked the stator without issue, check for a ground. Another common culprit is the alarm if you have one. I have Lo-Jack and a scorpio alarm and it drains my battery pretty fast, as in just days if the alarm is on and all options in use (perimiter, shock, tilt, etc. but especially perimiter)
Posted on Jun 17, 2010
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