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Jul 13

Posts: 1

hyosungowner says:

experts read this

i bought a bike (hyosung gt650r)
the battery was drained the day i got it (i was very much aware of it)
so i went ahead & bought one of those extreme magnapower batteries (the ones you don't need to charge)
for 4 day's it turned on like a charm nothing bad happened sounded smooth. but today i tried turning it on & it didn't work !. the gauges light went on .but that's all. when i turn my bike off i just turn the key that's all i don't touch the killswitch or the electric switch .could that be the reason? what do you think

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  • Posted 2 years ago (18 July 2013 16:03)

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Oct 05

Posts: 3168

sounds like the

regulator rectifier is knackered mate you could do with jump starting the bike and checking the voltage output with a multimeter with the bike running across the battery terminals if you rev it and it goes above 14.5 volts the regulator is goosed if it jumps up any more than 14.8 to say 16 or 17 volts it will be frying the battery ...... let me know how you get on

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Jan 08

Posts: 7535

kcmc says:

Hyosung GT 650R what year?

Hi Hyosungowner and welcome to the site:smile

(i bought a bike (hyosung gt650r)
the battery was drained the day i got it (i was very much aware of it)

If you bought the bike with the battery completely dead and would never take a charge,you should have checked the charge rate on fitting the new battery before just hoping for the best.If the regulator/rectifier has shorted? this could render your new battery warranty void,as this type of reg/rec malfunction will boil the battery and ultimately short the battery out too?.Take the battery off and charge it(with a optimisers type battery charger only)when showing full charge take it off charge and leave it to stand for about two hours,to get a true reading.If the battery after two hours isn't showing 12.5volt -12.8volt but more like 11.8volt -12 volt its had it,so you will need to replace it''again''.Check the charge rate when you get it up and running again,you should be getting,14 to 14.5volts with a good battery,if your getting only 12 volt or there abouts the charge system isn't working,could be a reg/rec or a generator problem,check your charge system fuses first. Hope this helps-good luck



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