Djebel DR250XC Stator output?

[Herms]

Does anyone have an idea of how many Watt will be available
from the stator on my 250cc. The DRz400 gives around 180-200 Watts
from the stator.

I have found a 10 Amp fuse under my seat. The only fuse on the bike as far
as I can make out.

Would it be a safe assumption to say 10Amp X 12Volts =120Watt available on my bike? Electronics is not my strong point.

How can I measure my current Watt usage on the bike? Will I be able to establish what is theoretically available.

Any help will be appreciated. 

[Herms]

Ok... I'll reply to myself.

I hooked up my multimeter and took some measurements to establish how
much Watt I can safely draw from my stator. I used a 55W spotlight globe
to simulate an extra electrical device.

My Results:

                                                             Amps               Volts

Dims on @ 1300 RPM                             1.5                  14.8
Dims on @ 3000 RPM                             4.3                  14.6
Brights on @ 1300 RPM                          1.5                  14.8
Brights on @ 3000 RPM                          4.2                  14.6
Brights + 55W Globe @ 1500 RPM             0.7                 12.6
Brights + 55W Globe @ 3000 RPM             1.7                 14.8

It seems that even at idle(1300RPM) the stator is capable to handle an extra
load of 55W and still load the batery with 0.7 Amps. At 3000RPM it loads the battery
at 1.7 Amps.

The voltage its 14.5volts plus from 2000RPM's upward when running the brights and the 55W extra globe.

Hopefully the Djebel 250XC owners out there can put this info to good use.
 

[Operator]

Hopefully the Djebel 250XC owners out there can put this info to good use.
 

Your damn right we will put it to good use 

Thanks for sharing this info. It may not be worth anything to alot of people , but to me it is worth a million bucks.

If you've got more info to share..........please go ahead and post.

[Herms]

I'll do so...

I plan to put heated grips on my bike. The whole experiment was to make sure
the stator can easily do the work. The grips only will draw max 55W on initial
startup, once operating temp is reached, it will only draw 36W on high.
Even less on low.
The stator will be more than up to the task. Will run a GPS aswell, if I had one.

I want to make the best of the coming winter.

[lecap]

Brights + 55W Globe @ 1500 RPM    0.7A 12.6V
Looks as if you're drawing 0.7A from the battery at idle.

Should still be fine. Just don't use the heated grips on the way to the grocery shop at the corner as the Battery will take longer to charge after starting the bike.

[Herms]

All values are positive, doesn't that mean that I'm still
putting in more than I'm drawing?

[Carnivore]

OK Herms, you did what I suggested... and it looks like you are OK.

But I must still ask... did you have your multimeter inseries with the battery, right up close to the battery, or did you stick in the fuse holder?

The reason I ask, is that if you stuck it in the fuse holder (in lieu of a fuse!) you might still have some other load NOT going through that fuse holder... the 12.6v worries me. Did you have two multimeters, one for amps and one for volts, at the same time...?

If up close to the battery, you should be OK.

I think that 10A x 12v = 120watt is a bit shy for a 250cc bike. That's a really low output. Have you not found a wiring diagram on the 'net anywhere? I would expect at least 200watt.

[Herms]

Thanks for the feedback.

I undid the positive terminal from the battery, put one multimeter lead on the
battery and the other on the positive lead I took off the battery.

I took the Volt readings afterwards. I only have one.

The 10Amp fuse is for the starter relay. Nothing to to with the stator output.

I'll redo the test to night, maybe I made a mistake with the 12.6V reading.

[Carnivore]

Well, then, that sound fine! If you are sure that the current was INTO the battery at 0.7A then you have no problem, seeing as that was at 1500 rpm. When the light changes to gree, you're back up to full flow and 14 odd volts again.

Looking good.

[Herms]

Cool beans.......

Thanks again