Question about 2007 Yamaha YZF-R6

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I own a 2007 Yamaha R6 with 2,000 miles and a dead battery. I fully charged it and installed. The next day it's dead again. I hope nothing is draining the battery. I want to assume it's just a bad battery. Please help. Thanks.

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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

  • KenMcBreezy Jun 17, 2010

    perimeter* not perimiter - i need to learn how to spell


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This could be a stator issue you want someone to check the stator to see if the charge being delivered to the bike is within the normal limits... by the way i would almost bet its the stator unless you have ground effects lights that could be grounded ou due to the heat a bike produces

Posted on Jul 12, 2009


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Sounds like a serious drain. First, fully recharge the battery, a new one should survive. By the way, disconnect the negative terminal until you get this all resolved...

So, charged battery, fluid up. connect the battery and measure the voltage at it's terminals. Start the bike and measure voltage again. Running, at 1500 to 2400 rpm, and lights off, you need 13.8 to 14.2 volts. I bet that you may not see much of an increase.

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Keep moving and disconnecting until you have no light at the battery test light...

Another way of measurement is to remove negative battery cable and connect the leads of a voltmeter to batt terminal and negative wire.

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