Maintenance & Technical > KX250 / KX125

1991 kx125 jetting

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Friar-Tuck:
 Yep, thats the keihin star,  Did the bike run O.K. before you put the pipe on?
  Did you jump up from the stock main, and how much has the weather changed since you made the mods to the bike?
  Do you have any other needles or just stock one that came with the carb.
   Just kind of brainstorming,  not trying to sound overbearing.. :|     (I'm not very good at "wordsmithing" and don't want to come off as a know it all or whatever...)
      I'll look in my Clymer for stock jetting and do a little more snooping for some other set-ups, maybe go back to stock as a baseline and work from there,   Keep a note book and one adjustment at a time and log it.  I know it sounds elementary but after a day of changing things around one tends to forget where we started.
 
 Here's the stock settings from clymer  My book shows it should be a PWK 35     
Hang in there.  :wink:                                                                main  158        # 5  slide               
  Tuck\o/                                                                                 neeedle NOEJ   second clip
                                                                                              48 pilot
                                                                                              11/2 turns out on the air screw
                                                                                               and float height at 15-17mm   

Jopiz:
Hey!

Thanks for stock jetting info. Just that i needed. Im going to order a set of main jets and pilot jets in order to get my bike running right. BTW does "free-flow" filters work at all? I was considering to replace my stock airfilter thing with a pipercross or uni filter. I know it wont work as good as stock on track but im riding mainly on road.

I noticed that sudco has rebuild kits for PWK 35mm. I think im going to order one and a new float. Any experiences about rebuid kits? Are they worth of buying? Or shall i order parts that i need individually.

Thanks guys!

Friar-Tuck:
 Jo,
 Here's another jetting write-up to read through, (I know...Boring.. but useful.)
http://www.cyclewerksracing.com/Carb%20Tuuning.htm
  Tuck \o/

Jopiz:
Does anyone know how to convert OEM Kawasaki needles to exact Keihin ones? Mine says N0EJ. My needle is worn out, so it needs to be replaced.  :roll:

-J

Friar-Tuck:
  J,
 Here is a link to what appears to be an Excel spread sheet to convert oem needles to
keihin stock needles.  Unfortunately I can't figure how to get it to work on my 'putor.
   Maybe a savy computor guy could help us out.... This would eliminate the guesswork
in trying to cypher the conversion.
       http://ourworld.compuserve.com/homepages/rushbe/KDXNeedles.xls
  I'll keep working on it...
  Tuck\o/   

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