Question about 2003 Yamaha YZ 125

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2001 Yamaha YZ 125 CDI swap

Hi, I have a 2001 yz 125.. would a cdi unit from a different year still work or does it have to be a 2001 cdi @

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Hi, James parts swapping is common with most motorcycles when it comes to interchangeable or compatible parts from one model with another "EXCEPT" for the CDI's they are year-make-model "SPECIFIC" the best thing to do is call your local Dealership Parts Department or a reputable independent shop. If your location is not near a shop then go online and find a parts catalog or "FICHE" and match part numbers depending on your criteria.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
YZ125 ignition mapping
Cdi bad What going on help
YAMAHA YZ125 Owner Service Manual
https://www.partsfish.com/page/oem-parts-for-yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Posted on Jun 25, 2018

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: cdi box

there a mounting spot between the radiators its a perfect fit for the slot on the box and its a tight fit

Posted on Apr 02, 2009

  • 3567 Answers

SOURCE: what oil should i have in yz 125 2 stroke

The clutch and gearbox share the same oil. The oil for the motor is 10w40. Stick with the major brands; Pennzoil, Quaker State, Mobil, Yamalube or Shell.

Posted on Apr 19, 2009

  • 44 Answers

SOURCE: what spark plug for yz 125?

I have a dennis kirk book, the correct spark plug is a --BR9ES--(NGK)

i always used SAE 10w-30 oil on all my dirtbikes,
no transmission fluid

for the chain you should move the back tire back until the chain is at a snug tension

Posted on Apr 24, 2009

  • 1 Answer

SOURCE: warning light

hi how did you know were 2 drill the cdi ? i have a 2008 rs i have fitted the powervale but its not working from reserch i think drilling the cdi activates the powervale but if you dont have one the light comes on on ur clock all i need 2 know is were 2 drill the cdi thanx

Posted on Jul 04, 2009

tabbycat282
  • 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

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2 Answers

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

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3 Answers

Cdi box


it should mount under the seat

Feb 17, 2009 | 2003 Yamaha YZ 125

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