battery died while riding
12-01-2009, 10:57 PM
#1
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Location: NH
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battery died while riding
my buddy has an 03 yzf r6, we were just riding and his battery died while it was running. we jumped it fine, charged it for a few off of another battery, about 2 miles later it died again. any suggestions?
12-02-2009, 12:25 PM
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12-04-2009, 09:42 AM
#6
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Re: battery died while riding
You need a "multi meter" and a wiring diagram (genuine or haynes) to check if you are getting current out of the stator coil and if the regulator rectifier is doing its job, if you were locla id say bring it over and i'll have a go, but your the wrong side of the atlantic for a visit!
You just gotta test 1 thing at a time to "fault find"
Do i take it that if you charge the battery the bike runnf fine for a while then jusy dies?
Stator coil : when the engine is running check for 12+ volts being generated
If so them maby its regulator rectifier
Regulator retcifier : is this sending 12 volts to the bettery or non or too much, probably non?............. and there may be your problem
Maby borrow parts off a friends WORKING bike of the same model or buy the parts from a bike breaker.
EDDy
You just gotta test 1 thing at a time to "fault find"
Do i take it that if you charge the battery the bike runnf fine for a while then jusy dies?
Stator coil : when the engine is running check for 12+ volts being generated
If so them maby its regulator rectifier
Regulator retcifier : is this sending 12 volts to the bettery or non or too much, probably non?............. and there may be your problem
Maby borrow parts off a friends WORKING bike of the same model or buy the parts from a bike breaker.
EDDy
12-04-2009, 11:46 AM
#7
thats what she said
Join Date: Jul 2009
Location: Chantilly, VA
Posts: 223
Re: battery died while riding
first try and save your battery with a tender.
measure the voltage across the battery when the bike is off, should be about 12.5ish V to 13.1ish. if not replace the battery. then start the bike, measure again, should be around 14ish at idle and a little more when revving it up. if its way over that, regulator/rectifier is fried and overcharging. if it stays the same, it could be the R/R or the stator. to check the stator find the 3 wires coming from it, its 1 wire for every phase, switch your multimeter to AC and check to see if theres signal coming from it. the regulator/rectifier also gets a little warm after a bit if its doing its job, so if its ice cold still, my moneys on the stator, otherwise id say the R/R
measure the voltage across the battery when the bike is off, should be about 12.5ish V to 13.1ish. if not replace the battery. then start the bike, measure again, should be around 14ish at idle and a little more when revving it up. if its way over that, regulator/rectifier is fried and overcharging. if it stays the same, it could be the R/R or the stator. to check the stator find the 3 wires coming from it, its 1 wire for every phase, switch your multimeter to AC and check to see if theres signal coming from it. the regulator/rectifier also gets a little warm after a bit if its doing its job, so if its ice cold still, my moneys on the stator, otherwise id say the R/R
12-04-2009, 01:47 PM
#8
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Re: battery died while riding
VOLTAGE REGULATOR
they are known for going out on yamaha's, they are really bad on the r6's and worse on older yamahas
Stators rarely go out, stators usually last tell they physically impact the ground and break..
99% sure its your voltage regulator, but you should still use a multimeter to test your stator to be sure.
Also batteries can die simply while riding, but that is also rare. But big impacts can kill a battery
And also most bikes dont produce any charge, or much of a charge at idle! A good charged battery should show 12.2-12.6 with the bike off. 13-14v with the bike at idle, and 13.5-14.5 at 4k rpm on a GOOD charged battery. A low battery wont show good voltage
Also you can't charge a battery off another battery. Batterys don't 'charge' tell there ABOVE the voltage of the battery. Simply feeding 12v into a battery won't charge it. You gotta use a trickle charger, and NOT a charger rated at more then 2amps or you'll hurt the battery more then you help it.
Walmart has trickle chargers for $18. Everyone should have one. They are a lot cheaper then even the cheapest batteries, and even when you buy a new battery your gonna have to have a charger to charge it!
they are known for going out on yamaha's, they are really bad on the r6's and worse on older yamahas
Stators rarely go out, stators usually last tell they physically impact the ground and break..
99% sure its your voltage regulator, but you should still use a multimeter to test your stator to be sure.
Also batteries can die simply while riding, but that is also rare. But big impacts can kill a battery
And also most bikes dont produce any charge, or much of a charge at idle! A good charged battery should show 12.2-12.6 with the bike off. 13-14v with the bike at idle, and 13.5-14.5 at 4k rpm on a GOOD charged battery. A low battery wont show good voltage
Also you can't charge a battery off another battery. Batterys don't 'charge' tell there ABOVE the voltage of the battery. Simply feeding 12v into a battery won't charge it. You gotta use a trickle charger, and NOT a charger rated at more then 2amps or you'll hurt the battery more then you help it.
Walmart has trickle chargers for $18. Everyone should have one. They are a lot cheaper then even the cheapest batteries, and even when you buy a new battery your gonna have to have a charger to charge it!
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