Scooterotica

firekdp wrote:As I said on a previous thread the wattage on the regulator does not refer to the load wattage. The wattage refers to how much power it can dump to the frame.
It only comes into play when you are NOT using all the power from the stator. If the stator is kicking out 80W but your lights are only using 35W then the regulator must dump 45W otherwise the voltage would increase and blow the lamps. If your lights are dim then you are overloading the stator and the voltage has fallen below 12v and the regulator will be doing absolutely nothing, apart from acting as a junction box.

Ok, so what is the advantage of the 120 Watt stator.

firekdp wrote:As I said on a previous thread the wattage on the regulator does not refer to the load wattage. The wattage refers to how much power it can dump to the frame.
It only comes into play when you are NOT using all the power from the stator. If the stator is kicking out 80W but your lights are only using 35W then the regulator must dump 45W otherwise the voltage would increase and blow the lamps. If your lights are dim then you are overloading the stator and the voltage has fallen below 12v and the regulator will be doing absolutely nothing, apart from acting as a junction box.

What do you see as the weak link here and the solution to this problem?

Bufficus wrote:Ok, so what is the advantage of the 120 Watt stator.

It can dump 40W more than an 80W. You see if your stator was kicking out 120W and you were only using side lights say 13W then the regulator would have to dump 107W, an 80W could obviously only dump 80 so lamp blowing would still be a problem as it wouldn't be able to bring the voltage down to 12v and also the reg may be damaged.

soulsurfer wrote:What do you see as the weak link here and the solution to this problem?

Either someone comes up with a stator to produce more power and a regulator that can dump it when needed or fit a battery. Don't forget that if you are not using the extra power from a higher power stator. you are using fuel to produce electricity that is just being dumped as heat.

firekdp wrote:

soulsurfer wrote:What do you see as the weak link here and the solution to this problem?

Either someone comes up with a stator to produce more power and a regulator that can dump it when needed or fit a battery. Don't forget that if you are not using the extra power from a higher power stator. you are using fuel to produce electricity that is just being dumped as heat.

Thanks for explaining, but I am simpleton with electrical theory.

So I still need to fit a regulator with B+ connection to charge a battery to run better/more lights?

I have been under the impression all that was needed was a 120watt stator, but clearly this is not the case.

Can anyone recommend a suitable battery as I already have a spare Elecstart regulator?

please explain your advice again...........for the simple minded.......like me.........
are you saying in fact............that in order to work properly....a 120w stator...needs a battery to drain off excessive charge...............which can then be fed through power feeds to supply and maintain better lights..................?

Firstly it doesn't seem like they are 120W stators. What I'm saying is that the only way to use more power than the stator is providing is to store it when able to. So when the electrical load is light the excess power will charge the battery and this can power the spots.

ok matey..........not quite sure if you agree with me or not..........but get the general idea.................i think...............
i may be asking a lot here from you mate............but ,i think this would be really helpfull to fellow scooterists.........if you could help.............
if for eg........someone had a gp.......and wanted to convert to a 120w bgm stator........what would you recomend/advise as per wiring spec...etc...........?
could you poss supply a wiring diagram ...........incorporating your advised mods /battery etc................?
thanks in advance FireDKp

firekdp wrote:A simple test to prove whether the regulator is affecting output would be to run the scoot without it (stator output direct to loom). Obviously start the scoot with full lights on (or at least main lights on and then all lights before increasing revs).

Anyone tried this yet? seems like the simplest way of establishing the output from the stator.

Does anyonen know what is inside a regulator? just wondering if ther's any sort of zenor diode which might be clipping the voltage

as far as i understand............and also regarding my limited knowledge on all things electrical............a zenner diode......is just a heat sink.............
it is just there to convert excesive leccy/power into heat and dissipate it...........
could be wrong i,m sure..........
hopefully ,someone will be along soon to explain.........for sure...........