Question about 2002 Yamaha YZF-R6

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I had the stator replaced in my yahmaha last year. i have taken my bike in twice since then cause my signal lites wouldnt work. now when i am driving my head lites go bright and dim. can this be due to a faulty stator. also i have had to replace my battery twice in the past year.

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No,it's the voltage regulator is bad.


Please take time to rate this fixya

Posted on May 14, 2009

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2 Answers

Battery not charging


Hi Anonymous, your bike is 10 years old how old is your battery? Before any proper electrical diagnosis can be made on your charging system your battery needs to be charged to at least 12.5 volts or higher. Make sure all battery cables and wires have a clean tight connection at the battery and the negative cable is securely grounded. The usual bad guy in this senario is the voltage regulator, remove and inspect for bad connections, cracks or swelling, burnt signs or smell, if it looks ok re-install it and with an ohm merter or test lite confim good ground with ground strap/wire and mounting is tight.Rremove voltage regulator plug at the front right hand side of the inner primary. With your test lite connected to ground touch the regulator pins, if the test lite glows replace the regulator.Then attach the ohm meter to ground with one lead and test stator pins they should both read infinity. Set the ohm meter to the RX1 scale and touch both stator pins with both leads, reading should be 0.1to0.2 ohms. Then set the meter to volts AC and fire up the bike and set the throttle for 2,000RPM meter should read 32 to 40 volts AC release throttle to an idle meter should read 16 to 20 volts AC at 1,000 RPM. Turn off engine and plug regulator back into stator set meter for at least the 20 volt scale DC and fire up the bike again voltage at battery should be 14.3 to 14.7 volts DC at 3,000 RPM if no luck then replace the component that did past it's test, either the voltage regulator or stator and or rotor if necessary. Good luck

Apr 12, 2014 | Harley Davidson FXSTS Springer Softail...

1 Answer

Can the stock stator on an 02 ktm 520 sx suport a


Yes' I almost bought one last year that was street legal complete with turn signals tail light and headlight all running off the battery. The stock stator kept up with it all just fine. The only reason I didn't get the bike was because a Husqvarna SM 450 R was available.

Oct 30, 2009 | 2002 KTM SX 520 Racing

1 Answer

Replaced coils, will idle,but wont stay running under load, also have to keep charging battery


because the bike is so new i wouldnt suspect the stator i would invest in a battery, a good battery is crucial for bikes. once you get a good battery in it check the voltage at the terminals when the bike is running(you should see around 13 to 14 volts). you can have the battery load tested at a batteries plus or an auto part store so you dont waste your money, but once you kill a bike battery there pretty much junk. the stators in motorcycles barely put out enough power to run the bike and pretty much trickle charge the battery. they rely on the battery to pick up the slack. get a battery from walmart there cheap and ive had one in my bike for two years and its fine, stay away from the over priced ones they dont do anything but slim down your wallet.

Sep 28, 2009 | 2005 Suzuki GSX 600 F (Katana)

4 Answers

Stator keeps burning out on my suzuki 1500 c90 2005


Battery is good place to start, have had chg problems on both sides, last Stator i installed was fron Ricks Stators, and I done away with plug in (it had been hot before) used solder and shrink tubing, also had to correct a B problem by running new wire with fuse inline and replaced Gnd wire to eng Hsg this worked for about 1 year, then had an episode with Rectifier/Regulator, Used same brand to replace and extended wiring to mount in front of battery so it could get more air, and it charges better than it ever did, The c90 has some flaws in the ground connectors that i feel caused my problems (corrosion

Aug 15, 2009 | 2005 Suzuki Boulevard C90

1 Answer

2008 Harley Davidson CVO Ultra classic and my ABS light stays on


i wouldnt ride a bike with the brake lite on - get it taken care of

Jul 30, 2009 | 2004 Harley Davidson XL 883 Sportster

1 Answer

Replaced stator, brand new battery, died after 10k ride


sounds if regulator is not working or poor connections within charging circuit

Jul 04, 2009 | 1995 Suzuki VS 800 Intruder

1 Answer

Faulty regulator rectifier- can't start the bike


I have a '07 C90T.
I have just replaced my stator. I replaced the reg/rectifier earlier this year. I replaced the battery one year ago in October.

I firmly believe what started the problem. Two guys that I told I didn't need help, but they pressured me to let them help. They hooked a battery backwards to my bike. A lot of people believe that's what shortened the life of the rectifier and stator.

But keep this in mind. The connections for the regulator/rectifier are not waterproof. I had done a lot of rainy riding and I first found a burnt connector on the discharge side of the reg/rect. My mechanic told me I needed to replace the reg/rect so I did but I soldered the wires and made them waterproof. I didn't do this on the stator side of the reg/rect and a few months later, when the bike quit charging again, I found that connector burnt, so I cut it out and soldered and waterproofed it.

Two days after we got back from a 700 mile round trip to Red River, NM, my bike quit charging again. This time though, I have a voltage meter on the bike, so I was aware of the problem before the bike could strand me someplace. Get one of those btw.
When I checked the old stator after I replaced it, I found the stator good but the pulse signal generator bad. It's required that you replace both btw. You have to, they are joined at the grommet.

Ok well, the battery cost $60 last year and I replaced it myself.
The reg/rect cost $140 through my mechanic and I replaced it myself.
Got the stator online for $173 shipped and they advertise a better stator that puts out 20% more power.
Not counting little things like solder, tape, heatshrink and such, I'm out a little less than $375 on my charging system.
I hope it's a done deal.
Again, some think the problems began when the battery was hooked up wrong, but I lean to believe the sub-standard Suzuki connections may have a hand in this.
Hope this helps. . . Joe

Jun 18, 2009 | 2007 Suzuki Boulevard

3 Answers

89 Sportster 1200 with electical issues


First thing to do is charge the battery and do a load test on it. Use a charger rated for motorcycle batterys not a battery tender. Once the battery is charged and tested, you need to test the stator. On the right front down tube at the bottom you will find the plug that goes from the stator to the voltage regulator. I forget the values that you are looking for but with a multi meter and the bike running take a reading at the plug the voltage should climb when you rev the engine. If you do not get any reading or if the voltage dosen't climb you have a bad stator. If the battery and stator are good it will be your voltage regulator.

Apr 29, 2009 | 2000 Harley Davidson XL 1200 C Sportster...

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