Question about 2005 Yamaha Ybr 125

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2005 Yamaha Ybr 125 wiring diagram

Need to know which wires go where red and 3 white wires coming from stator which goes we're on racing cdi Yamaha yb 125 @

Posted by Wayne morris on


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  • 12 Answers


Pull the plug back out of the cylinder and ground it against one of the head bolts, kick the engine over to see if you are getting a spark.

Posted on Jan 05, 2009



  • 1 Answer

SOURCE: 2000 yamaha warrior atv will not run

do you have good air intake like new airfilter and good fuel flow

Posted on Mar 14, 2009


Graeme Ross

  • 1512 Answers

SOURCE: yamaha ybr 125 top speed

Hi les
Not much to start with here unfortunatly mate. A free flow muffler will help top end speed, change the factory airbox to a K&N style pod air filter, other than that, hugging the tank at top speed :) If you do change these parts, you may also need to increase the main jet size to richen up the mixture for better tuning of the motor with the better flowing parts. This bike has a top speed of 100kmp and produces 10 hp, so you may only expect to get at best less than 1 extra neddy, and perhaps another 5 km/hr.... I suggest upgrading to a bigger machine of you feel the need for speed :)
If its 125's you are into, test drive a Honda CBR 125R 6 speed fuel injected 13.4 horsepower, and good for 120km/hr
regards robotek

Posted on Jul 10, 2009



  • 56 Answers

SOURCE: yz125 no spark

G'day i am a . YZ 125 j ...lets see now! You could perform these tests yourself.Check your plug CAP,if in doubt replace it with a new one. Take the below ohm figures and see if they match up. Pulse coil: white/blue and white/red= 310 ohms. low speed coil: Green/white and Black/red= 900 ohms. high speed coil: Green/blue and black= 55 ohms. hope this has helped in some way to helping you solve your problem.If it has please leave feed back.Ride hard , see ya,Tabbycat

Posted on Jul 24, 2009

iain kelly

  • 311 Answers

SOURCE: My 97 cr 125 breaks up in high rpms

hi this may help,it sounds to me like the carb is running way to lean,this may cause the bike to miss at high rpm,also check that the spark plug cap is in good condition as it may be breaking down under high load conditions...cheers

Posted on Aug 02, 2009

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No fire to coil changed stator checked ac voltage with meter on 3 white and brown and green wires voltage to rectifier no power on red or white wire to cdi,changed cdi box still no voltage on coil

Do you have a teather switch ? I would suggest start by checking the resistance of the on off switch . Then procede to the cdi relay. If you do not know how to test such items let me know and I will break it down step by step.

Oct 16, 2013 | Grizzly Big Bear Atv Maintenance Free...

2 Answers

Hi. no spark on my yamaha dt 125 lc ypvs from 87. New cdi box. but same problem

sounds like the stator coil in behind the flywheel there are some electric tests for the stator but not allways correct I would try a stator

Mar 21, 2011 | 2000 Yamaha DT 125 R

1 Answer

I need to know what wire to hook the coil up to the CDI box on a 1992 KX500. Its orange and doesn't correspont to any other wires.

the manual I have is from a couple of years earlier

it shows three wires in to the CDI from the stator

a red black that also goes to the stator but is joined to a black\white connected to the stop switch

and a single black that goes straight to the coil.

a 1992 may not have the original coil, or it may have had a black sheath over the orange when new

If that doesnt help, you may need to repost the question

Jun 15, 2010 | 2002 kawasaki KX 500

2 Answers

I have a chance to pik up a 88 yz 125 for a hell of a price and the guy says it wont start. No spark. electrical problem. says its the stator. I dont know that. So im asking, what exactly I can do to find...

hello, usually you have 3 things for firing problems, stator and stator pickup coil, or ign coil, or cdi, i have a 2000 warrior 350, i just went through all that, you can buy after market cdi from procom engineering inc. i purchased one for my warrior 76.00 , it advances timing, hotter spark etc.most of the time it is the stator, pick up coil, both are hooked up together in the stator case, left side of motor,warrior cdi usually goes bad, havent heard of cdi on 88 model, may need to check with dealer.

Feb 06, 2010 | Yamaha YZ 125 Motorcycles

1 Answer

How do i wire a honda nsr125 to the coil and what do i need

Hi and welcome to FixYa,

Would depend to which coil:
  • ignition coil - green to ground & black/yellow to CDI;
  • pulser coil - blue & green/white to CDI;
  • exciter coil - black/red to CDI;
  • stator coils - 3 X yellow to rectifier/regulator combo.

Good luck and thank you for asking FixYa.

Jan 14, 2010 | 2000 Honda NSR 125

1 Answer


you are wanting a wiring harness

your best bet aside from ordering one is to buy a service manual from or local husqvarna dealer and use the wiring schematic to build your own race harness........don't forget the kill switch.

Oct 05, 2009 | 2006 Husqvarna TE 610

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