regulator

Newbie to this forum. I have a 1980 XS400 SE, that doesn't seem to be producing a charge from the stator coils. Everything checks out fine, no breaks or shorts, and I suspect the solid-state separate voltage regulator is not allowing any feed from the field coil (it appears to be on the output...

Hey XS’ers. I’ve read a few threads on some similar issues from others, but I’m not quite finding the answers I need. I’ve got a 1979 XS400f that I am turning into a brat style. I’ve done a lot of upgrades, including the motogadget M unit blue, motogadget gauges, and a solid state...

Hi there, I've already created an thread some time ago about my problem with the regulator and rectifier. An electrician checked them and turns out that the regulator (i guess that's what it is, the 3 pin one) is not working propertly. As I live in Macedonia, shipping costs for a new replacement...

Hi Guys, I need to pick the brains of anyone good with the start and end points of charging system on the XS. Mine is a 1981 400SE UK model. I’m very comfortable working with 12V DC Vehicle electrics so am rewiring this bike from scratch. I’m just previously used to four wheel charging systems...

Hi, I have XS400 Special 1980. I bought a new battery and after 2-3 days of riding, battery dies, the starter doesn't have enough power to spin and after some time it completely stops. I think it is because of the regulator. It is the original one as far as i know. However, shipping from ebay to...

Hello all, In my pursuit to figure out my charging issue I'm noticing I have four yellow wires coming from my stator, that hooks to a male connector with three yellow wires that continues into the loom. Everything I've read, I'm only seeing that there should be THREE yellow wires coming from the...

I know i've read threw most of the posts about this, but I just don't understand what is going on. Help me out? The skinny: From engine: Black - field coil ground? Green - field coil 3 whites- ac current I have the r292 VR, the magnet works when energized directly from battery, green receiving...

Hi all, Firstly, I'm new to both this site and motorcycle repair in general, so please excuse my probable lack of knowledge. I picked up a 1981 XS400 Special II last week, and it looks to have some pretty severe electrical issues - the insulation on the wiring harness is burned, as are the...

Heylo. The skinny: I built a cafe racer, eitrd from scratch, burnt out two batteries. I have a combo reg/rec purchased from Ricks. My bike is a 1981 xs400 heritage special. My R.R has 3 white wires, which I ran to the white wires on the R.R, 1 green to the magnet? A brown wire that...

I own an SOHC XS400 as of today ! when wired to a new battery this thing runs beautifully but it wont charge the old battery. Thus I figured that I would try to replace the Regulator and Rectifier (which were cheap on ebay) and then replace the stator/alternator. However, this bike has a weird...

(The day it was dropped off at my shop) (Current state) Hello everyone, I’m new here so I will introduce myself and my 400 project. I inherited this project from a overwhelmed friend and decided to use it as a little learning project. I’ve owned a dozen or so vintage bikes and just always...

Hey guys & gals, I'm working on converting from the stock charging system to a PMA charging system on an XS400. The stock charging system was getting weak (although I didn't note it had failed) and the rubber seal where the wires pass thru the crank case cover were a leaking spot. I...

Ok guys, here we go again! I know this is another thread that has been posted probably about a MILLION TIMES. So I am just going to say that I did READ THE MANUAL, performed the tests as they say. I did search around on different threads for answers, but it seems that they always start off with...

Hi everyone. I'm starting a charging system thread, and a thousand apologies for that. My issue is, near as I can tell, a new one, and one that's virtually impossible to Google. My problem is that my new combined reg/rec seems to be outputting 12V flat to the battery. Just try searching for...

Hey guys... Really need some help trying to sort out my '79 XS400. I've had some major issues along the way since day one with this machine and I'm close to calling it quites. If I don't soon my wife is going to force it!!! Background: I bought a 1979 Yamaha XS400 with 18000 kms on it. Has...

Hey guys, I just bought an rr38 reg rec to go on my project. It came with a diagram but id expected it to be the same as an xs650 but it isn't. Does this look right to you? Cheers

So I just finished a small rewire on my XS400, lengthened some wires and shortened others up to help them fit my cafe/brat seat. Just finished connecting all of my new terminals and plugging everything in and what do you know, it isn't charging. I am running a brand new R292 regulator for the...

So I was trying to read into charging system problems and dig myself out of the "motorcycle not charging club" and came across the razor blade test and thought I'd give it a try. As I understand it you simply need to turn the key on and your coil should be magnetized (don't need to have the bike...

I got my bike running well thanks to this site but the charing system is not working. I have read every thread on this site on this issue and they have been extremely helpful. Here's how the tests went. Initial alternator test showed that the bike is not charging. I found that it had a...

I have what I thought was a regulator issue with my 1980 xs400G, but I just replaced the regulator and I'm getting the same behavior, so I'm wondering if it could be something else. Here's the story: - I've got a topped off battery that reads 12.5V across the terminals - When I put the key in...