KX Riders

Maintenance & Technical => KX250 / KX125 => Topic started by: AZdirtRiDeR on November 26, 2006, 02:53:10 AM

Title: '93 KX125 - 1st gear WOT issues
Post by: AZdirtRiDeR on November 26, 2006, 02:53:10 AM

I don't understand what I'm feeling.

1st gear won't wind out.  It almost feels like it's choking.  I pulled the plug it's a little fouled but not bad.  I clean and replace it, but still no top end RPM in first gear.

I shift into 2nd and it's better, 3rd and up it's fine, I can wind it out, but 1st gear sucks.

Then on the way back to the truck[wife's van :)] it seems better, but then again, cold it runs like crap.

It doesn't make sense to me unless this model just runs better HOT.

Am I missing something?

Title: Re: '93 KX125 - 1st gear WOT issues
Post by: FPMXer on November 26, 2006, 04:37:22 AM

All bikes run like crap when cold, let it warm up before you take off and all should be good.

Title: Re: '93 KX125 - 1st gear WOT issues
Post by: AZdirtRiDeR on December 16, 2006, 07:54:32 AM

It was the jetting...

Title: Re: '93 KX125 - 1st gear WOT issues
Post by: kx666 on December 17, 2006, 06:25:37 AM

for best performance it is recomended to change jetting every 3 degrees.
but i am a little lazy, i have summer jets and winter jets and i am happy with that