Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: Erny on September 28, 2019, 02:18:20 PM

Title: Electrex rec/reg on CB550K1
Post by: Erny on September 28, 2019, 02:18:20 PM
Hi all,

as a part of investigation of improper charging I tried to replace stock rec+reg by combined unit from Electrex https://www.electrexworld.co.uk/acatalog/RR24.html#SID=439

With stock mechanical regulator and charged battery I have 14-14,4 until 6k RPM then it drops to less than 13. When RPMs are back down, voltage again increases back.

Suprisingly, with new Electrex unit it looks it charges less than stock. I have 13-13,3V but stable level.

Measured with lights on.

Anybody with experience with Electrex RR24? Is that normal behaviour?

Strange is that accroding to their website, CB500K or CB550K is not listed on this product, but I assume regulators are the same for CB500K1/2, CB550K1 and also CB550F CB500K3.
The same unit they sell for CB750

Title: Re: Electrex rec/reg on CB550K1
Post by: Johnwebley on September 28, 2019, 04:46:21 PM
I had a RR24 on mine.

It copes well.
Runs electronic ignition and H4 halogen 65/60 headlight

Sent from my SM-A750FN using Tapatalk

Title: Re: Electrex rec/reg on CB550K1
Post by: Erny on September 29, 2019, 07:13:04 AM
Hmm that's strange then.
Maybe I should send it back to wemoto for replacement.

Will test it on my CB750 and then see
Title: Re: Electrex rec/reg on CB550K1
Post by: paulbaker1954 on October 04, 2019, 11:16:41 PM
Any further on this, I have an Electrex unit waiting to be fitted.

Also re my “running like a dog” posts I still recommend highly the Boyer system, I got so sidetracked that my issues were due to ignition which they were not.

Boyer were really helpful and for £17 they checked the complete system for faults. Their support is first rate
Title: Re: Electrex rec/reg on CB550K1
Post by: Erny on October 05, 2019, 10:21:53 PM
Paul,
no futher update yet, I was busy with garage renovation + weather change (rain, low temps here...0.

Plan is to test it on my CB750K K7 and then test K7 regulator on CB550.

But, it seems to be Electrex does not work as good as stock one... more than 1V lower voltage is too much
Title: Re: Electrex rec/reg on CB550K1
Post by: Bryanj on October 06, 2019, 09:07:49 AM
Original reg sounds like contacts are sticking with vibration at revs, 13.3 with lights on and battery charged is about right
Title: Re: Electrex rec/reg on CB550K1
Post by: Erny on October 09, 2019, 08:22:31 AM
Yes, I suspect the same - contacts sticking at vibrations. But what's wrong? Regulator not resistant to vibration (and should be) or?
13.3V on electrex is maybe good with lights but it will not charge battery fast enough in the city rides. I expected it will juice max, so similar to stock regulator.

Would be good if someone who has Electrex on CB500/550 can measure voltage with and w/o lights (H4) in entire RPM range to have reference check
Title: Re: Electrex rec/reg on CB550K1
Post by: Johnwebley on October 09, 2019, 08:29:29 AM
I could do this. But not for a few weeks. As I am away on hols

Mine works great. Recently covered 500 miles in a weekend.
But. I do tend to keep the revs up when the lights are on
As I think the generator is only 200w at best

Sent from my SM-A750FN using Tapatalk

Title: Re: Electrex rec/reg on CB550K1
Post by: Erny on October 09, 2019, 08:40:16 AM
Thanks.

Yes, I do the same, keeping higher revs when running with lights, especially in the city with lot of stops on traffic lights.

Title: Re: Electrex rec/reg on CB550K1
Post by: deltarider on October 09, 2019, 12:20:37 PM
Slightly of topic... From 1980 on, the year I bought my CB500K2 (ED), I've continued using the 55/60 Watts H4 halogen the bike came with and never had any charging problems. Every ride I return with a better charged battery than I took of with. I should add I don't like to ride in cities, but I live in the centre so the first and last part of a ride is inevitably in the city. Some years ago I've changed something in my headlamp reflector. I replaced the 4 Watts Ba9s position light bulb, that is not very useful anyway, by a dito 20 Watts halogen that I now use as my DRL (see pic). Saves fuel by reducing some 35-40 Watts. I had looked for a suitable led for that purpose, but an expert explained me the result would be no good without the special reflector a led needs. BTW, I'm still looking for a stylish switch to mount on the handlebar so I can just switch the pilot light on only without the taillight and instruments lights. Whenever I'd need those, like on entering a tunnel, I could then still switch the standard Honda RH handlebar to "P" and so add instruments lights and taillight. I like to make it perfect by having a yellowish DRL that is known to make motorcyclists stand out better. I looked for a Ba9s in yellow, NOT amber. Maybe I've found one (https://www.ebay.com/itm/2-PCS-12v-21w-BA9S-YELLOW-SIDE-LIGHT-BAYONET-BULB-AMBER-CAR-LAMP-REVERSE-BULBS-/152497315292), but I'm still in doubt is it really yellow in that picture or amber, the color I definitely do not want. What do you guys think?
Title: Re: Electrex rec/reg on CB550K1
Post by: Erny on October 09, 2019, 01:50:09 PM
I got the point for your idea, but if I want to implement it would mean modification of cable harness - I have US version with light switch on right handlebar having only OFF and ON position, I cannot switch on position light alone only.
Additionally, position light is not allowed to be used legally and on the other hand you have to have position bulb in the main headlight of flashers. On top, using 20W bulb on place of position light is not legal too.. Yes, question is if someone will notice that (police)...

I converted from US version sealed beam with sidelight in flashers to H4 headlight with position bulb while deactivating position lights in flashers.
I as like US front look with flashers, I'm thinking to re-activate sidelights in flashers again but using LED bulbs due to power consumption. To do that I need to insert some diode into turn check light in idoit lights panel to isolate left and right part to avoid both side working simultaneously.

Title: Re: Electrex rec/reg on CB550K1
Post by: Bryanj on October 09, 2019, 02:00:31 PM
Doesnt matter what regulator you have its engine revs that govern amount of charge current. You will never charge the battery poodling round town with lights on, drive like a hooligan maybe!
Title: Re: Electrex rec/reg on CB550K1
Post by: Erny on October 09, 2019, 02:13:23 PM
Yes, I know this well, unfortunately. I spend some time trying to find some solution like upgrading alternator to higher output power but seems hardly possible.

My only trigger for regulator replacement was issues at higher revs. I'll test other reg from my stock CB750K7, it is the same, but looking service manual, internal settings (contact gap) is not the same. Anyway I'll try it at high revs to see if behaviour will be better to eliminate definitely stock regulator issue.
Title: Re: Electrex rec/reg on CB550K1
Post by: SteveD CB500K0 on October 09, 2019, 02:15:45 PM
drive like a hooligan maybe!
.

Translation: ride normally



Sent from my iPhone using Tapatalk
Title: Re: Electrex rec/reg on CB550K1
Post by: Erny on October 09, 2019, 02:20:12 PM
I do, but when I do it does not charge so well and I miss a bit of fun factor  ;)
Title: Re: Electrex rec/reg on CB550K1
Post by: Johnwebley on October 09, 2019, 02:36:52 PM
drive like a hooligan maybe!
.

Translation: ride normally



Sent from my iPhone using Tapatalk
Is that why my battery charges?


Sent from my SM-A750FN using Tapatalk

Title: Re: Electrex rec/reg on CB550K1
Post by: Erny on October 09, 2019, 02:38:29 PM
yes!  ;)
Title: Re: Electrex rec/reg on CB550K1
Post by: deltarider on October 09, 2019, 02:48:49 PM
Erny, these pics of LED lights on a truck show what I have against LED (except for taillights maybe). They are a joke, really and it is as the expert told me: LEDs need a special reflector. As soon as I ride out- it's raining all the time now - I will make a pic of how well my little 20 Watts Ba9s illuminate the total headlamp reflector making it a fine DRL.
Title: Re: Electrex rec/reg on CB550K1
Post by: Erny on October 09, 2019, 02:55:45 PM
I know that well, normally LED bulbs replacement like H4, H7 etc are disaster in standard parabolas. However they are fine in big style Honda flashers, both as position lights and flashers. Will make some photo/video to show later.
Now I use LED in taillight and rear flashers and it is very good, except maybe flashers are bit too white or not as orange as before, dut to use of white LEDs. I plan to change them to amber and it will be great.
Benefit is clear, effect of switch on/off of brake light is much more visible (safety behind you) and lower consumtion too.

I know that like that bike is no more stock, but in this case I'm OK to make exception, due to higher safety and better energy management.
Title: Re: Electrex rec/reg on CB550K1
Post by: K2-K6 on October 09, 2019, 03:01:19 PM
Generally led light source are focused with a condensing optic to project all the light toward target. 

Tungsten light sources radiate (complete sphere)  and so have to be collected by a reflector to get it all headed in the same direction (headlamp reflector)  before passing it through a focusing lens.

So fundamentally different arrangement.  The "halo" lights on current vehicles,  you are just looking straight at the led array with no reflector visible.

We could explore it in a dedicated thread if you want rather than weave it in this rectifier one.
Title: Re: Electrex rec/reg on CB550K1
Post by: deltarider on October 09, 2019, 03:19:11 PM
If you allow me, a little more on the subject and why I consider LED less safe where it concerns indicators and brakelights.
As far as safety, in particular the attention value, I favour ordinary bulbs over leds in blinkers and brakelights. It may sound strange, but LED brake- and indicatorlights do not draw as much attention as bulbs do. The reason is that ordinary bulbs glow on and off, where Leds are either on or off. In other words: with glowbulbs there is more chance you'll see something is changing. Do not forget that our brain is programmed to detect changes. Now we all blink our eyes from time to time. In such a blink a led can be switched on unnoticed, where with conventional bulbs after you've blinked you can still see the lamp coming on or going dim. Some time ago I almost ran into a bus in front of me. I had missed glowing brakelights in my eyesight and the clean Leds that had come on unnoticed, had not alarmed me at all. And this was not the first time...  Led lights can be a good thing for taillights, but I don't want them in my blinkers and certainly not as a brakelight. If other drivers are like me, I'd run a higher risk being rearended. Carmakers seem to have realised this 'deadness' of these LED blinkers and now offer 'special effects' that restore the attention value. https://youtu.be/6YHqvdaLMU0
Title: Re: Electrex rec/reg on CB550K1
Post by: K2-K6 on October 09, 2019, 03:29:59 PM

We could explore it in a dedicated thread if you want rather than weave it in this rectifier one.

Don't worry deltarider,  I wasn't "moderating " the subject just that sometimes someone else will point out thread drift. I'm not bothered where it is.

Title: Re: Electrex rec/reg on CB550K1
Post by: K2-K6 on October 09, 2019, 05:57:51 PM
In answer to the yellow bulbs :-

They look to me like they would give a yellow light as they are more "lemon citrus" colour which excludes red component,  which is the part that makes it look orange.

What filaments do they have?
Title: Re: Electrex rec/reg on CB550K1
Post by: deltarider on October 09, 2019, 09:44:43 PM
I don't know. 12V 21 Watts halogen, that's all it says, brand unknown.
Title: Re: Electrex rec/reg on CB550K1
Post by: K2-K6 on October 09, 2019, 11:06:26 PM
As long as it's not led then halogen means tungsten filaments.

You really can't tell just from looking at it so it's something you're going to have to get an example to try,  but the coating in that picture looks like it stands a good chance.

Basically the tungsten when glowing emits principally both yellow and red spectral output at that spec.  So yellow filter will help make it appear yellow by absorption of any blue light.

But you need to screen out the red part with a cyan filter to prevent your eye seeing red and yellow mixed to create orange. The filters are not a perfect spectral "cut" so one may overlap the other,  hence the suck it and see approach.

Also driven at below target voltage it will display more red component,  and driven to a higher voltage it will move more to yellow. So many variables making it difficult to predict.
SimplePortal 2.3.5 © 2008-2012, SimplePortal