KX Riders

Maintenance & Technical => KX500 Original => Topic started by: bjohn07 on March 28, 2013, 05:43:17 AM

Title: kx500 with very weak spark
Post by: bjohn07 on March 28, 2013, 05:43:17 AM
so yesterday i rode the bike a few hours.  rode good till the last hour, then started bogging down on top end.    parked it.  came out this morning to start it and warm it up and it wouldnt start.  tried for about 20 mins then gave up.  it usually starts cold in 5 kicks.      put a new plug in it.  still no start.  pulled the tank and cut a piece about 1/4" of spark plug wire so it would have a cleaner contact point.  still no start. i used a spark plug tester i have that supposed to let you see the spark when grounded and it wont even spark.  i touched the wire to the frame and it makes a small crackling sound, so im assuming its really weak since it dont spark like it should.      im not sure how to test the coil or cdi.  can anyone point me in the right direction of how much resistance it should have.   or where to start.  im lost at this point.   i already pulled all the connections to make sure they are clean.
Title: Re: kx500 with very weak spark
Post by: Motorrad on March 28, 2013, 05:53:55 AM
BAM!  (as emeral would say)

http://www.kxriders.com/forums/index.php/topic,10928.0.html
Title: Re: kx500 with very weak spark
Post by: bjohn07 on March 28, 2013, 06:10:32 AM
Quote from: Motorrad on March 28, 2013, 05:53:55 AM
BAM!  (as emeral would say)

http://www.kxriders.com/forums/index.php/topic,10928.0.html

thanks.  thats exactly what i needed.
Title: Re: kx500 with very weak spark
Post by: Friar-Tuck on March 28, 2013, 03:39:04 PM
And if you get bored,
http://www.kxriders.com/coppermine/thumbnails.php?album=lastup&cat=1&page=3
Title: Re: kx500 with very weak spark
Post by: bjohn07 on March 29, 2013, 03:47:47 PM
well coil and stator both tested bad.  :-(    now debating on weather to part this thing out or sell as is before i deploy or throw it in storage and do a complete overhaul on it when i get back. 
Title: Re: kx500 with very weak spark
Post by: alward25 on March 29, 2013, 04:54:20 PM
What year and where u at????
Title: Re: kx500 with very weak spark
Post by: Motorrad on March 29, 2013, 05:05:02 PM
Quote from: alward25 on March 29, 2013, 04:54:20 PM
What year and where u at????


Ditto.   many members on here can help..
Title: Re: kx500 with very weak spark
Post by: cmotodad on March 29, 2013, 05:50:28 PM
Maybe in the right hands, in your area, it can be ready to ride when you get home? I am willing to help if possible.
Title: Re: kx500 with very weak spark
Post by: bjohn07 on March 30, 2013, 02:47:15 AM
its a 1992.  im right south of colorado springs, close to ft carson.
Title: Re: kx500 with very weak spark
Post by: cmotodad on March 30, 2013, 03:01:59 AM
Anyone near Colorado Springs? I am sure we can get something going to helpout.
Title: Re: kx500 with very weak spark
Post by: bjohn07 on March 30, 2013, 06:17:32 AM
id appreciate it.  i found a coil for a decent price.  now just trying to convince the wife that it would be better for me to buy a stator than to sell it.    i told her its a sign it broke and i cant sell a broken bike.   :lol:
Title: Re: kx500 with very weak spark
Post by: Motorrad on March 30, 2013, 06:42:19 AM
Quote from: bjohn07 on March 30, 2013, 06:17:32 AM
id appreciate it.  i found a coil for a decent price.  now just trying to convince the wife that it would be better for me to buy a stator than to sell it.    i told her its a sign it broke and i cant sell a broken bike.   :lol:

Hey sandblaster..     You got any of these parts?
Title: Re: kx500 with very weak spark
Post by: bjohn07 on April 04, 2013, 12:22:45 PM
great news.   new coil made it run again.  good current spark but i dont think its as strong as it should be.     thanks for the help guys
Title: Re: kx500 with very weak spark
Post by: sandblaster on April 04, 2013, 12:29:32 PM
Quote from: Motorrad on March 30, 2013, 06:42:19 AM
Quote from: bjohn07 on March 30, 2013, 06:17:32 AM
id appreciate it.  i found a coil for a decent price.  now just trying to convince the wife that it would be better for me to buy a stator than to sell it.    i told her its a sign it broke and i cant sell a broken bike.   :lol:

Hey sandblaster..     You got any of these parts?

I guess I'm a day late and a dollar short..  :-(