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Old 23-05-20, 09:04 PM   #11
Biker Biggles
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Default Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?

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Originally Posted by NedSVS View Post
I fitted a FH008 from a CBR600RR (2007 IIRC) to my SV650S 2001 nearly 10 years ago now. The FH008 has been fitted to other Honda models too. It fitted in the original place with the fins running in the same direction. I fitted the connectors from my original regulator, as they were in good condition, to the Honda unit. This seems a fair priced one


https://www.ebay.co.uk/itm/Honda-CBR...vlEJTN9w%3D%3D


Just check with the seller it is marked FH008. If you do a search on this forum for FH008 you will see a few have been fitted.
I fitted a CBR600 one to a curvy too. I cant remember the year it came off but it cured the problem and lasted until I sold the bike about five years later.
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Old 25-05-20, 07:28 AM   #12
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Default Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?

I've got a mofset r/r doing nowt in the shed. Bought one for a job that never happened

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Old 25-05-20, 01:25 PM   #13
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Default Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?

Another possibility - series regulator:
http://web.ncf.ca/ag136/SV650/seriesRegulator.html
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Old 27-05-20, 04:04 PM   #14
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Default Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?

Hi

I have installed a second hand rectifier which gave the correct readings when on the bike it has been removed from.

When lights are off, 16.5 volts at idle and hovers around 17v at 5,000 rpm.

When lights are on, 13.5 volts at idle and just below 14 volts at 5,000 rpm.

The results with lights on are within range, whereas lights off is outside acceptable range. Switching between dip and main beam does not change the voltage. Any indicators as to what the problem is?

Thanks,
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Old Yesterday, 08:09 AM   #15
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Default Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?

Hi,

I fully charged the battery and the charging system behaves the same.

I fitted the previous rectifier back on the bike, and now it is behaving as previous with poor charge.

Before I resort to buying another rectifier, can a rectifier be faulty and cause over charging? Or should I be chasing through the motorbikes electrics?

I have also checked the Stator output again and now one of the three connectors is showing a couple of volts less than the other two. Can this be causing the excess charging?

Thanks,
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Old Yesterday, 06:02 PM   #16
embee
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Default Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?

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Hi,
…... can a rectifier be faulty and cause over charging?
Yes.

Anything 15V upwards will fry the battery.
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Old Yesterday, 07:39 PM   #17
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Default Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?

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Originally Posted by embee View Post
Yes.

Anything 15V upwards will fry the battery.
You need to be a little careful about testing, though. If the R/R has been detached from the wiring loom before testing, it's possible that you'd read a high voltage when there's zero load. At least, that's my understanding!
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