Maintenance & Technical > KX250 / KX125

125 Dies before powerband!

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DoldGuy:
Jopiz,

Replace your spark plug cap. I know it sounds silly, but I had one with very similar symptoms. It would heat up as the RPMs would rise, & create an open circuit, coast to a stop & it would fire right back up. Tried a new CDI, Stator, & Coil only to find it was the silly cap.

Hope its as simple as this, keep us posted!

DoldGuy

dirtjunkie85:
I agree with Doldguy. its gotta be an electrical problem if you have checked everything else. i could be a CDI problem i cracked the CDI on my KTM 250sx and it did great for a while but then would die all of the sudden. i swapped the CDI and it ran great. start with the plug cap first though and then go to more complicated things.

Goat:
I too have had a bad plug cap before. It's a cheap retarded fix. Also check all your connections are tight and covered. They could be grounding out anywhere from the frame or with each other.

Jopiz:
Replaced the cap and now she pulls through the gears in no time! I thought the cap was good but it certainly wasnt. Thanks for your help guys!  :mrgreen:

Coop:
Awesome! Yeah a lot of times the eye ball method doesn't always work to tell if a part is good  :-D .

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