Stator question

I have an 09 1125r with 6700klm.The build date on the frame is DEC.08.I have read that 08 models dont have stator problems.Was there a definate month where the stators were changed,could I be so lucky that I may not get a problem.Sorry about all the questions guys,just starting to get a bit worried mine will fail.One thing on my side is, I dont ride in traffic,I only ride early weakend mornings on my faverite twisties,before the traffic starts so the bike never really gets hot.I rode to town once,and found out how hot they can get stuck at lights.

It was a 09 model change so if it is titled as a 09 you have the larger seeker stator
On the plus side I made it to 10,000 miles in all sorts of riding and wasn't even that bad.
But like you I was worried and did a rewind and new voltage regulator.
I think the biggest issue is the regulator can't handle the amperage.
I made a DIY post on how to change the regulator.

It's easy to tell what you have..

Is there a two or three wire harness from the regulator to the stator ?
Two or three big yellow wires into a grey plug on the left side of the bike near the rear part of the air box.

Two wire...good
Three wire...maybe not so good

My CR lasted just over 14,000 miles before one segment died.

The regulator can handle the power just fine, but the method of releasing the "heat" from the regulator is what kills that.

Many assume that by putting on a different brand of regulator will make the stator act different...
It won't. The stator is just a dumb, electro-mechanical device that makes electrical power (when working correctly!).
NO...power goes "into" the stator, power is "made by" and "released by" the stator (and rotor).
I just read this long disertation on another board about how the Compufire regulator makes the stator work.
Makes the stator work....!? Bull S....
The crank shaft makes the stator/rotor system work.!
The V.R. "conditions" the electrical power to what the bikes electrical system can handle (by engineering design).

Now, I'd guess that IF a better designed V.R. can handle the "excess" power (read that..."heat") better, then maybe the stator would live a happier life with it's output. I'm not sure.

So...if you have a three wire (three seperately wound) segment stator...you can probably expect failure..sooner thAn later.

I'd install a volt meter (09 CR's have one) of some kind and keep an eye on it for an abnormal voltage drop.
When the idle or low rpm voltage drops to 12.3/12.4 volts...time to look into a new stator.

For what it's worth, I put a computer power supply type fan just above my stock regulator to help cool it.

Good luck..

Mike

08's and 09's both have 3 wires from the stator.

Thanks guys,when it comes to wires and electronics im clueless.I think I have to leave it in the hands of the big guy,and see what happens. [confused]

The regulator can handle the power just fine, but the method of releasing the "heat" from the regulator is what kills that

Click to expand...

totally disagree the 08 made less amps(wich have no charging issues) and heat is how it releases extra voltage.
I think i have the fix by the end of the summer i will know for sure. Cost 300 Dollars in parts and 3 hours of time. Small price for piece of mind.

Interesting, my comment (or your quote) above and your (RT Perf.) comment don't go together..!?

I don't know about the 08's making less power...other than the stator IS rated at fewer amperage output.

As far as the excess power turning into heat...I agree...!
That's why I put a fan over my regulator, because I don't think using the subframe is good enough as a heat sink in this case.

Mike

The 09 amperage is like 30 or 40 amps more than 08 output.
Was just trying to say the regulator can't handle the voltage and makes excessive heat due to over loading.

^^ mike I like the idea of the fan -can you post up how you did that and what type of fan you used!

I seen a few fans that would work at northern tool.
I am at 1500 miles for the summer and everything is working great on mine.

Mike, got a pic of how your installed that fan over your VR?

All -

No, no pictures, sorry.

VERY simple. I used a high rpm small fan like whats in the back of your computer (same size).
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=259-1415-ND

I just moved the wiring around enough to allow the fan to rest on the top of the regulator. Held in place by the subframe and the wiring/California canister hoses. I also moved the wiring around enough so that the blowing air can have full access to the front of the regulator.
It blows straight down on top, one side and the front of the regulator.
I wired it to the tail light "and" a switch (with fuse). On cold mornings, I leave it off..!

There's plenty of room between the fan and the bottom of the seat to pull air from.

Hope that helps some.

Mike