2003 kawasaki KX 125 Logo
kx1251990NI Posted on Dec 24, 2012

1990 kx 125: The bike is pretty hard to start and then when i do get it started it will die out if i dont keep the revs up. It will even still do this if i have been riding a while.

Just new to the sport so please help

1 Answer

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  • Posted on Jan 04, 2013
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How did you get on with FTjoes fix? That would be my first thing to do, dont forget to take out the jets and give them a blow through, then treat the bike to a new plug if you haven't already. :)

5 Related Answers

Knight 007

Murtaza Akberali Versi

  • 767 Answers
  • Posted on Feb 18, 2009

SOURCE: i have 2003 kawasaki kx 125 when you put it in

Hi cbloom,
You will have to probabley adjust the clutch either from the end of the cable at the side cover or from the above at the handle lever.

Good Luck .


Knight. ( Yamaha Seca XJ750A 1981)

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Anonymous

  • 1 Answer
  • Posted on Mar 02, 2009

SOURCE: kx 125 1992 wont start

sounds like the rings are fried and needs a new piston and rings.. for an 80 there about 110 bucks for the whole kit

Anonymous

  • 126 Answers
  • Posted on Mar 06, 2009

SOURCE: wont run /idle

i'd start with removing the carbs and giving them a thorough cleaning as when bikes sit for so long, the carbs begin to get gummy/varnished from the old gas.

check for blocked holes in the pilot jet & main jet and look for "hard & dried up" gas in passages. be careful of the float bowl gasket as to not tear it or you will need a replacement.

Anonymous

  • 490 Answers
  • Posted on Apr 15, 2009

SOURCE: my 1986 kx 125 clutch does not engage worked prior

possible the cable is needing to be adjusted make sure it is pulling on the pivot

Anonymous

  • 1 Answer
  • Posted on Apr 20, 2010

SOURCE: wont start by kick start but will by pull start

it could be the gaskets around your carb are bad and leaking air if so its thinning your gas fumes with more air then what is needed inside your combustion chamber witch is causing your engine to stop running like that. best of luck

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