Regulator/rectifier price differences - Are the cheap ones worth getting?

From a simple dustcap to a full on turbo-nitrous breathing monster.
If you have any questions, here's the place to ask.
Post Reply
craik
Club Member
Posts: 111
Joined: Wed Jun 13, 2012 5:59 pm
Has thanked: 62 times
Been thanked: 14 times

Regulator/rectifier price differences - Are the cheap ones worth getting?

Post by craik » Thu Mar 07, 2024 7:00 pm

Looking on Ebay for a regulator/rectifier unit for a GS 650 Katana, there seem to be a range of prices varying from eg £29 for an MTX brand one to £83 for a 'MOSFET' one. And a range of prices inbetween.
https://www.ebay.co.uk/itm/265685989221
https://www.ebay.co.uk/itm/166614073638

What do you actually get for your money with the more expensive ones?
Are the cheap ones worth getting or a false economy? Anyone any experience of the cheaper ones being reliable?
Thanks in advance for any advice/info.

User avatar
fossie
Club Member
Posts: 4850
Joined: Sat Oct 23, 2010 9:16 pm
Has thanked: 136 times
Been thanked: 680 times

Re: Regulator/rectifier price differences - Are the cheap ones worth getting?

Post by fossie » Thu Mar 07, 2024 10:07 pm

I have experience of the cheap ones and it's hit and miss to be honest...But that's owt electrical really innit?
Reality is before the www opened up every tom dick and harry able to sell anything it is difficult to know what standard you are actually getting, it could be a 'cheap one' at inflated prices.
I suppose it depends on what you are using the bike for if it's just occassional then the cheap one should last..
Personally I'd go with one that you can have redress with should you need it.
Are you sure its the reg rec and not just the earths to and from the reg rec cdi ..etc ?
Electrix was the go to in the 90's as they are UK based and sorted on site .
CLUB Chairman


My Gallery

User avatar
johnr
Club Member
Posts: 3007
Joined: Sun Oct 24, 2010 9:58 pm
Location: lancashire
Has thanked: 266 times
Been thanked: 365 times

Re: Regulator/rectifier price differences - Are the cheap ones worth getting?

Post by johnr » Sat Mar 09, 2024 8:12 pm

electrex, fit and forget quality stuff. buy cheap-buy twice.
and before you fit it, check that your wiring has been updated to ditch the old suzuki failing of running an alternator phase through the headlight switch.
My Gallery

KOC 004

craik
Club Member
Posts: 111
Joined: Wed Jun 13, 2012 5:59 pm
Has thanked: 62 times
Been thanked: 14 times

Re: Regulator/rectifier price differences - Are the cheap ones worth getting?

Post by craik » Tue Mar 12, 2024 4:07 pm

Thanks fossie and johnr.
How do I know if the wiring has been updated?
The current reg/rec unit ("12v SH532-12 4.0 041 Shindengen Japan") has 6 wires coming off it:
3 yellow ones join the wiring loom towards the engine, a red one to the loom under the toolbox, a green one to the frame in what appears to be a ground and a black one which isn't connected to anything.
Not sure how to check if it's wired to the headlamp?

User avatar
johnr
Club Member
Posts: 3007
Joined: Sun Oct 24, 2010 9:58 pm
Location: lancashire
Has thanked: 266 times
Been thanked: 365 times

Re: Regulator/rectifier price differences - Are the cheap ones worth getting?

Post by johnr » Wed Mar 13, 2024 10:23 pm

Superdream reg rec. Hondas use green as earth. Run all 3 alternator outputs directly to all 3 reg rec inputs, red direct to battery +ive, earth to battery -ive.
My Gallery

KOC 004

User avatar
fossie
Club Member
Posts: 4850
Joined: Sat Oct 23, 2010 9:16 pm
Has thanked: 136 times
Been thanked: 680 times

Re: Regulator/rectifier price differences - Are the cheap ones worth getting?

Post by fossie » Sun Mar 17, 2024 2:55 am

Craik you've got a superdream fitted already ..your issue is that black wire ...it is the one that switches the reg rec on in eessenance ...it needs to be connected to a live feed just join it to the red wire of the reg rec...
As johnr said on *onda green is earth ..god knows why ..

Truth is if you bought a new Suzuki item now you'd have to suss the wiring back to original spec.
CLUB Chairman


My Gallery

Post Reply