Maintenance & Technical > KX250 / KX125
Main Bearing Repacement
mustangfury:
Put the motor back together, put it in the frame, and did the break in. Seems fine so far. I let it idle for 5 minutes and let it rest for 20. Then, I let it idle for 10 minutes and rested it for 20 minutes three times in a row. Finally, I road around my yard at quarter throttle for about 10 minutes.
Since my original jetting attempts were done with a bad seal, I put the rich main jets back in. It is definitely running rich, but it runs pretty smooth.
Thanks for the help everyone. Couldn't have done it without you.
Stang
DoldGuy:
Stang,
If it helps at all I have my notes from back in the day & on my 93 KX125 J2 model with a 36mm Carb I used 52 Pilot, 170 Main, N1A1 Needle with the clip in the middle, # 6 Slide, 1 1/2 on the Air Screw.
38mm: The Same as above with the exception of a 180 Main, & 1 out on the Air Screw.
These settings @ 500' above sea level.
Hope some of this might help!
DoldGuy
mustangfury:
Took the bike out for a ride today. The throttle response is a lot better than before. all that crank oil leaking in must have been killing it. It used to be very choppy. The thing is crazy fast. First run from idle, effortlessly ran a power wheelie through second and into third gear, then ran out of field.
The rear fender still gets oily but not nearly as much as before. It mainly gets oily when I am running from 1/8 to 1/2 throttle. Otherwise there is little oil. I put in a lower pilot jet and that helped some, i think i might try one lower. Plug chop gave a perfect brown color. The mid range is very responsive. I'm not too worried about the oil if it has good response and runs well.
Thanks for all the help everyone. Everything seems to be successful.
Stang.
DoldGuy:
Stang,
The # 6 Slide was the cure for the 93 KX125, if you are still oozing out of the silencer joint & exit the packing is probably saturated from before.
DoldGuy
mustangfury:
Do you know where I can get a #6 slide for a good price? All I found was $105.
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