Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?
 

Anyone heard of or tried this SX series regulator ? Series has to be the way to go as unlike the agricultural 'shunt' ( electrical word for connected in parallel ) which just releases all the power it does not need as heat while fully loading the alternator coils all the time, the series ones only allow what they need to pass through and block the rest, giving the alternator a much easier time, rumour has it you can cool your hands on the series type heatsink.... The series ones work more like the alternator on cars where the rotor winding is wound ( not just permanent magnets like on motorbikes) and the current in rotor winding ( excitation ) and therefore alternator output is varied according to load. The SX7 model fits 650 V-Strom so would seem best match for SV650 electrically, don't know about mounting and plugs.

They come with 2 year warranty

http://www.sxelectronics.gr/en/p2.html

Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?
 

Decosse (on various Suzuki and Triumph forums) has tested the Shindengen SH775 series r/r but discovered an issue with a loss of regulation on very high rev bikes (>13k rpm). The later SH847 series r/r works on high revving bikes. Shindengen are expensive though and can be difficult to find, the 2015 V-strom 1000 uses it (32800-31J00) and it's £250.

https://www.triumphrat.net/threads/c...pgrade.104504/

Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?
 

This electrex one is listed as SV650 2004--> and is a 'series ' one. A 'direct to battery' fused lead is supplied with the RR

The high rev issue should not affect SV as I suppose it is to do with the frequency of the3 phase AC being fed to RR, and our V twins only rev to 10 or 11K

The SX ones say they can handle up to 250 volts AC

https://www.electrexworld.co.uk/acat...Rectifier.html

Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?
 

Found this while looking for something else - RR fault finding



http://www.genebitsystems.com/david/...ngProblems.htm

Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?
 

Have had the RR851 series R/R from Electrex World on the bike for about 2 years now - I have a permanent digital voltmeter ( like this - https://www.amazon.co.uk/JZK-Motorcy.../dp/B09V2SHF67 ) hooked direct to battery terminals ( I have an SAE charging lead hooked up to battery and just fitted a matching SAE lead on the voltmeter wires, so just plug in voltmeter before I start the bike for a trip ) and also used the 'direct to battery' fused loom ( supplied with R/R ) to cut out resistance in normal loom on bike. As well as running an average of over 30degC cooler the R/R appears to respond to state of charge of the battery. Just after starting the SV the voltage from R/R is about the 14.5 / 14.6 level, after a mile it starts to drop and settles around 14.1 / 14.2, voltage is very stable all across rev range - very happy with the R/R and it was less than £100 when I got it.

Re: SV650 Curvy - Voltage Regulator / Rectifier supplier?
 

I had an Electrex World alternator and reg/rec on my little 400 gixer years ago. They were well made and very reliable, and the company was really helpful. They even sent me the ready made cable link to connect the r/r directly to the battery for nothing.