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Replacing the Regulator/Rectifier
The photo above shows the Rectifier/Regulator on the bike, with the connector unplugged. Remove your rec/reg by unscrewing the two bolts at the sides, lifting the cover-boot up out of the way, and then unplugging the connector. See photo below.
To install your new rec-reg, just bolt it on the bike, plug in the connector by just snapping it on, and then push the cover-boot back down over the connector. Done.
Reinstall the front exhaust pipe, preferably using a new exhaust gasket.
Tip: I do not recommend torquing the exhaust header-flange nuts, as the flanges on many aftermarket exhaust systems are thinner than stock, and bend easily. Just tighten moderately. Then after your first few rides, check the nuts again.
Reinstall the right-side floorboard assembly by torquing the two button-head bolts under the floorboard assembly using 35 ft-lbs of torque.
Then just reconnect the battery, bolt the side-covers on, and snap your seat back on. That's all there is to it.
Now you’re ready to add your favorite electrical accessories, knowing you won’t come out to a dead battery—at least not because your stator couldn’t cut it. You also won't be stranded somewhere because your rec/reg got fried.
Questions should be asked in our forum (Use discuss link below).
The forum is very active and you stand a good chance of getting your questions
answered there. If you would like to leave feedback
for the author, or have additional information you think will benefit others, please use
the comment section at the bottom of this page.
Discuss this article on the forums. (6 posts)
This information and procedure is provided
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accept any responsibility for the accuracy, applicability, or
suitability of this procedure. You assume all risks associated
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SHALL IN ANY EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, PUNITIVE, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES, OF ANY NATURE ARISING OUT OF OR IN ANY WAY
CONNECTED WITH THE USE OR MISUSE OF THIS INFORMATION OR LACK OF INFORMATION.
Any type of modification or service work on your motorcycle should
be performed by a
If performed incorrectly,
this procedure may
endanger the safety of you and others
on your motorcycle and possibly
invalidate your manufacturer’s warranty.
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|05 stator with 00 regulator|
Written by chainsaw, on 08-31-2015 22:52
Hey guys, new to the clinic and saw this article when looking for how to replace stator. I have a 2000 R* and I replaced the stator with an 05. The regulator that was sent to me to match the stator was bad and was charging at 17 volts at 3000 rpms. I ended up putting the 2000 regulator back on until my replacement comes and now I'm charging at 14.3. My question is will this hurt my electrical system at all?
|Done and done|
Written by phuturepharmd, on 02-07-2015 16:21
got both the stator and regulator replaced today. Think the hardest part was getting the damn old gasket off lol. Once completed, had to make a little side trip to Home Depot for slightly longer bolts for the regulator as the electro sport heavy duty regulator was a bit wider than stock. Tested the battery at the posts with the bike idling and getting around 14.2V. I'm freaking thrilled to have my bike running again out of pocket $400 counting parts, gaskets, supplies compared to the $1800 the dealer was quoting. Total time ~6 hours counting a trip to the auto parts store for a t30 bit, then back again for a couple additional supplies.
Written by phuturepharmd, on 01-23-2015 23:06
took my bike to the local yamaha dealer for an electrical issue that was symptomatic with a battery that was gradually draining and now not enough spark to keep the bike running. i had a feeling it was the stator / regulator-rectifier since its a 2004 model. the dealer called after having the bike for 6 days and told me the repairs would be $1800....LOL. needless to say, i told em thanks but no thanks. i ordered an electrosport stator and reg-rec from amazon and the other assorted parts (gaskets, sealant, etc). i appreciate this guide and look forward to learning a little more about repairing my bike by myself. the dealer told me the stator alone was $400 just for the part....what an effing ripoff. i should have known they would try to bend me over a barrel for the repairs.
|Less amp draw|
Written by scottie409, on 05-04-2013 16:57
One option is to reduce the amperage draw on the marginal charging systems on Roadstars is to reduce draw by using led headlights and passing lamps as well as signals etc.
my 2000 has stock alternator and have had no issues with killing battery and have lots of accessories.
Written by scottie409, on 10-16-2012 10:20
Has anyone sorted out the output of aftermarket stators yet?
Lots of conflicting info out there. eg 31amps vs 21amps for stock yamaha part.
Written by scottie409, on 09-21-2012 13:08
Just got an e mail from Ricks motorsports with the following recommendations for my 2000 Roadstar 1600.
You can actually use our part# 21-419H for the 1700. It will bolt on and give you a little more power because it’s a different type of wind than the one for the 1600 Road star. On the rec/reg – our part# 10-419H is 50 amp unit made with Mosfet technology.
I hope this can help someone else as there is a lot of confusion about the amperage output of the stock units especially model year 05 and up.
|Update for ShinyFlash|
Written by easyrider003, on 08-14-2012 09:24
@ShinyFlash - I had a 2005 Road* sold it and ended up buying another one that is a 2000 model. On my 2000 model I added a stereo and adapter to plug in a GPS. It drained the battery like crazy.
Now when I had the 2005 Road* I had passing lamps, motorcycle alarm, stereo, and accent lighting underneath the tank and floorboards. No problem whatsoever with battery life. I just ordered a 2005 stator and rectifier today about an hour ago. Waiting to getting the parts in and replaced. I am very optimistic that this will solve the previous problems I was having. I will update when I find out.
|2001 Road Star Silverado: Stator coil as|
Written by justdave, on 05-25-2011 15:11
This is a GREAT step by step explanation.
My 2001 Road Star Silverado stator coil assembly resistance is 0.9 ohms; twice what it should be. Therefore according to the service manual I need to replace the stator.
Does anyone know IF Electro Sport Industries have a stator & matching rectifier / regulator available at this time?
I planned on going on the Rolling Thunder ride this Friday but now I am concerned that my bike will leave me stranded along the way. Will this excessive stator resistance drain my battery?
|Written by Rodedogg, on 04-14-2010 15:20 |
put a new rectifier in no is charging 13 -14.7 is that to much
|Written by Grizzly4444, on 12-17-2009 21:38 |
Check with ElectoSport Industries ...they have (or soon will have) what you need....high output stator and matching reg/rectifier.....like a lot of other fellas ...I'm waiting patiently for this new product too
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