Lights flickering

Maintenance, repair, troubleshooting, etc.
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taavikaarid
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Joined: Fri Feb 17, 2017 11:25 am
Region or State: Estonia
Motorcycles Owned Currently: 1989, XJ600

Mon Jul 03, 2017 7:03 am

Hey,

I wonder if there is anyone who can pinpoint my problem. While riding all the lights (including the dash) become bright for a few seconds and then return to normal and sometimes they dim below normal level too. It fluctuates all the time but especially when at higher rmp.

Could it be the voltage regulator?

Thanks!
Yamaha XJ600 51J

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Casper
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Joined: Sun Feb 26, 2012 2:16 am
Region or State: Motor City (MI)
Motorcycles Owned Currently: 1994 XJ600, 2006 SV650

Mon Jul 03, 2017 8:31 am

Sounds like the Regulator / Rectifier.

DO you have a multimeter or voltmeter? You can check the voltage at the battery while revving the engine briefly and if you see more than 15, you have a bad regulator.
Men do not quit playing because they grow old; they grow old because they quit playing.

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taavikaarid
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Posts: 12
Joined: Fri Feb 17, 2017 11:25 am
Region or State: Estonia
Motorcycles Owned Currently: 1989, XJ600

Wed Jul 12, 2017 7:12 am

Indeed, the RR has failed. It boiled my battery last night and voltmeter says that's no good.

I started to look a new one and it appears that this is actually the trickiest part. My failed regulator has 47X-A1 / SH569-12 / 8.D.3 written on it. As far as I can tell, this item is actually a stock item of FZR600 (mine is XJ600 51J 3KM1). I have found a version with code 47X-A2 / SH569-12, but I'm not sure if it actually fits.

So, which RR would fit on my oldie or do you perhaps know the right code to use for my expedition?

Thanks,
Taavi
Yamaha XJ600 51J

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taavikaarid
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Posts: 12
Joined: Fri Feb 17, 2017 11:25 am
Region or State: Estonia
Motorcycles Owned Currently: 1989, XJ600

Tue Jul 18, 2017 2:06 pm

Bought this one: http://www.ebay.co.uk/itm/NEW-REGULATOR ... 2749.l2649

Works well on my 51J.
Yamaha XJ600 51J

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andrewed1
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Joined: Mon Oct 05, 2015 3:51 pm
Region or State: Sydney, Australia
Motorcycles Owned Currently: XJ600 Seca II - 1992 & a 2nd 92 xj600s
Location: Sydney, Australia
Australia

Wed Jul 19, 2017 9:33 pm

Looks the same as mine..

Good to hear kts working.. after install did you get a new battery as well?
Whats the volts read now?

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taavikaarid
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Region or State: Estonia
Motorcycles Owned Currently: 1989, XJ600

Tue Aug 22, 2017 7:21 am

Yes, I got a new battery since the old one was completely dead.

The volts are now all good (between 14 to 15) ...even after around 2000 km.
Yamaha XJ600 51J

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