2003 kawasaki KX 125 Logo
Colin Shevlin Posted on Mar 26, 2016

My kx125, can still start it and ride it without a lot of compression, it only gets compression about half way towards the bottom when kicking it, but it does start.. Any ideas??

Only gets compression when im kicking it half way down but does start right up, and still can ride with no problem... Any ideas??

3 Related Answers

co7196

Ned C Cook

  • 3433 Answers
  • Posted on Jun 12, 2009

SOURCE: kick start has no compression but runs fine once i get it going

Does it feel like yhe kick is even engaging and turning the crankshaft? Are you full stroking/kicking it over or short stroking it? when cold, are you using the choke. I suggest taking a compression test when it feels as if it hs no compression It could be undersized piston, rings, or a simple. good luck

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Anonymous

  • 41 Answers
  • Posted on Sep 13, 2010

SOURCE: Have barely any compression at

turn off the key, hold the choke button and keep on kicking the crank handle for a few times but dont turn on the accellarator, After that turn on the key and release the choke button and slowly turn on the accellarator after every kick

Anonymous

  • 1 Answer
  • Posted on Mar 29, 2013

SOURCE: have a 09 kxf 250 will roll start and ride fine but wont kick start and has next to no compression

Have u checked your kick start shaft might be striped or broke?

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Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

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< < READ CLOSELY > >
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There is a proper way to start the engine. Four controls are on your bike to assist in starting.
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Does it feel like yhe kick is even engaging and turning the crankshaft? Are you full stroking/kicking it over or short stroking it? when cold, are you using the choke. I suggest taking a compression test when it feels as if it hs no compression It could be undersized piston, rings, or a simple. good luck
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I recomend you to take a compression test.
From your explanation it seems there's no compression at all thts why the engine rotates easier on kick start.
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