The wire connector for alternator-reg/rectifier is gone wires are y how do i connect them corectly

red to red, black to black, etc, yellow to any other yellow.

Hi have you checked the output from the alternator? This is 3 faze it has 3 yellow wires which connect to the rectifier, here the voltage is converted to dc used for charging the batery, check for broken wires from the alternator under the front sprocket cover, or corroded wires at the rectifier block connector, it is also important to have 12 volts in the battery to activate the charging process, using the machine with a pore condition battery can severley dammage the charging system componants

Hello there, I have a 2009 XT660Z as well and had the same problem, the chance are is the regulator/rectifier.

If you can jump start the bike with jump leads to get it going again, have a look at the head light while the leads are still on, is it bright? (should be as running fro another source)

Then take the leads off, look at the light and has it gone dim?

If so then it\'s one of two things, you battery is ruined or you are not getting power feeding back to the battery from the reg/rec.


For me this was corroded connections on the OEM connector sat on top of the reg/rec, I took that OEM junk off and replaced the wire ends with spade connectors, heat shrunk the lot (each spade and then the whole bunch to sit over the reg/rec too) and not a problem since.

Remember to take photos as you work, and keep them, that way you won\'t forget which wire goes where, as for the three white alternator wires mark them up before cutting off the OEM connector and take a photo.



Hope this helps, I\'m off to solve more problems with the bike now!

You can get at the Reg/Rect by taking the fairing and dash cover off. You don't have to remove the right side fairing. I have done it this way. Remove the seat, false tank, handlebar/clock adjust buttons cover, vent cover around the steering, right inner fairing cover, windshield, dash cover. Then you have access to the Reg/Rect. The wiring loom for it runs back towards the right speaker, the connectors there split to the Stator and noise filters on the yellow wires. The Yellow wires can also be connected to any of the yellow connectors. You can also join a Cavalcade email group accessed through www.suzukicavalcade.com hope this helps.

This is probably due to a faulty wiring, regulator/rectifier or, less likely faulty alternator
1st check the wiring & connections from the alternator to the reg/rect (3 yellows) then check wiring to the battery (thick red)
You should get 13.5 volts (with a fully charged battery) across the battery terminals rising with the engine revs to no more than 15.5 volts, if its over then the regulator is at fault
check the alternator for continuity between the 3 yellow wires (3 pairs) at the reg/rect plug after disconnecting it. the 3 pairs should have a similar reading & none should go to earth
To check the rectifier part you need a diode drop setting on your multimeter. there should be a reading 1 way only between the red & any yellow and between the black & any yellow if not it will need renewing

Hope this helps
Please mark as helpful if it has been
Ride safe
Bike-doc

your voltage/reg. can be tested in a couple different ways check ground res. check res. then revs. bias on diodes you have ac in dc out it sounds like you may have a diode gone bad allowing ac curent to flow causing the wires to get hot

sounds like the stator may be grounded

Sounds like your regulator/rectifier is faulty....but it could also indicate an alternator problem. Don't run the bike or it will eventually hurt your battery and/or your alternator (if it hasn't already.)

The wire currents, voltages, etc needs to be checked (from the alternator AND from the rectifier) so I recommend you take the bike to a mechanic unless you have a multimeter and shop manual handy.

I've found Yamaha wiring connections to be slightly weak....and sometimes lead to the premature death of the reg.rectifier. Solution was to 'solder' the connections instead.

Good luck with the FZR.

RP