Question about 2003 kawasaki KX 125

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Kx 125 reed valves

I need to know how you know if the reed valve is bad on kx 125 looks to be not broken or chipped or bent open in any way...

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  • steve albertson
    steve albertson May 17, 2009

    it dont hold water i have it rite in front of me and went into the bathroom and put water in the back and it dripples out of it till the ery bottom you think thats bad enough to spend 40 bucks on a new one???the bike was sitting for 4 years in the garage with gas and all that in it i just changed the oil plugs and tore the carb apart and its hard to start and is running crappy any suggestions??? and the air fuel adjustment how many turns out from all the way in should that be set at???

  • neenpig Oct 18, 2009

    If the reed is bad will it cause the sparg plug to be overly wet?

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The reed valve assembly should hold solvent withot leaking. Remove for test. Disassemble and clean reeds and reed seat. Perfect seal is very important.

Good luck,
Techjoel

Posted on May 17, 2009

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I would try new reeds mine looked ok but the bike wouldnt even run and i replaced the reeds now it runs like a top got-ink is right air screw should be at 1 1/4 turns and adjust after u get it running

My bike,
Kx125

Posted on Dec 23, 2009

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The best way to tell is hold the reed cage from the back up to light look around outside edges of reeds for light. if you see a little light usually means reeds are worn but, i dont think the are your problem sound like you need a carb cleaning as for your air screw start by turning it all the in and back it out about 1/1/4 turns start bike and adjust by listening to sound of motor idling and throttle response. also be sure that your piston and rings are up to specs as this will effect the overall tuning of the bike. hope this helps.

Posted on Jun 23, 2009

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