2004 KX250 Basket case

[drewwilhelm]

My 87" 250 lost spark at home (thankfully) after a long trail ride. I used the link Umberto posted above to Sandblasters tutorial. The stator test seemed erratic and i thought i was doing something wrong but after several tries the white/red to black/yellow numbers were inconsistent but just slightly out of spec on the low side.

I was lucky to find a used stator on ebay on the first search and it fixed the spark problem as well as hard warm starts.

Maximus,
I looked through the thread already but, the x500 only has 3 wires coming out of the stator my 04 has a wiring harness with about 5-6 wires (not looking at it directly right now).  I fear I may have fried the CDI when I plugged the plugs in backwards and tried starting it, but I can't see how its possible because I only kicked it about 5-8 times with them switched.  I will try to use the thread posted by Umberto to test the stator and see what I can find.  Hopefully I get some time Wednesday to do it.  Thanks Guys!

[drewwilhelm]

For the ground wires on this thing, do both ground go together on the side of the coil or does the coil ground go under the coil and then the other ground go somewhere else?  Theres a full electronics bundle off an 03 on eBay right now I might pick up for around 300.  Let me know what you guys think.

[umberto]

For the ground wires on this thing, do both ground go together on the side of the coil or does the coil ground go under the coil and then the other ground go somewhere else?  Theres a full electronics bundle off an 03 on eBay right now I might pick up for around 300.  Let me know what you guys think.

Both of my grounds are under the coil. I'm not sure about using an 03 bundle.  The part numbers are different, which probably means it has different internal settings. I would imagine it would work, it might just have a different spark curve.

[drewwilhelm]

So I have been MIA for awhile and the kx project has been on the back burner ever since racing season started.  I recently bought a 2017 yz250x so I have not found the motivation to work on the bike.  I just found a 2003 stator on eBay for 200.  I just bought it and will let you guys know if this is my problem.  I am pretty sure it is!

[umberto]

Man I hope that fixes the issue. I want to see that dude run.