Maintenance & Technical > KX500 Original
So my 04 is dead
SMPKX500:
Well got back to it after letting it set for awhile. Pulled the carburetor and reed cage only to find the ends of my reed pedals damaged. I thought that might be the problem so I installed the V-Force.
First kick it came to life and I thought it was good until it stalled again. I guess the coil will be next. Runs fine until it warms and then stalls with no restart. This bike is pissing me off!
stroke.n.smoke:
That does sound like a coil, but make sure you check all the conections under the tank going to the coil. I had a problem similar to you and it was just a loose connection under the tank, they all looked like they were clipped together but one was just resting in the cover and would hit and miss once and a while. took me a while to figure it out but was a matter of pluggin in the wire.
Good Luck...
KXcam22:
Also keep in mind that the ignition pulse trigger can also cause problems as it encounters heat and/or vibration. I have only seen this on Yamahas but it could happen to any brand. The good thing is that once it completely dies you can test for it with an ohm meter. Cam.
DoldGuy:
SMP,
I had a like problem: KX125 ran great until it got warm (approx 10-15 min.) and then would just die (pulled the plug, damp with fuel) let the bike cool down for a couple minutes and would start up and repeat the whole process. Checked the stator and coil with a meter (checked OK), borrowed a CDI thinking this would surely be the fix, and the problem still persisted. Removed the coil from my 250 (same part #) and installed, the problem was fixed. Ordered a new coil, installed it, went to the race track, problem was still there. Pulled the 250 coil again and installed problem fixed.
Bottom Line: It was a bad Plug Cap (Resistor Cap/When it would get Hot it would Open and loose contact). New coil did NOT come with a cap, removed the cap from the old coil and installed. Try removing the plug cap and run the coil wire direct to the plug.
I hope the solution tp the problem is simple as this! (keep us posted)
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