Kawasaki kx80 has no spark

possible but check that after you check the operation of the "kill" switch

Stator will stop the cdi from firing the spark plug and either cdi or stator if bad will stop a spark from being created. The coil, wiring, kill switch and other things can also stop ignition spark.

ok do it have a crank sensor?and check for a good ground

double check that the motor ground is good,
that the kill switch is working proper.
neutral safety switch,
i have seen the magnets get damaged from rough play and not do there job also

Check the wiring on the connector plugs make sure all the wires are the same color on both sides, red to red blue to blue and so on. I had the same problem After replacing a stator and just plugging it in,after two weeks a new cdi and coil i noticed there were two wires transposed.

Try disconnecting the kill switch. If it fires, replace the switch.

Check spark plug cap. It screws into the wire. Give it a turn clockwise and check again for spark. If not, unscrew it counter-clockwise and look at the small core of wire ends in the middle. Those will over time break and cause inadequate connection. Use some wire cutters and snip about 1/4 inch off the end and screw the cap back on.

If still nothing, you need to check the coil resistance and the stator. Eliminating everything else is the only way to diagnose a bad cdi.



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are you getting power to these items best to check this before you carry anyfurther

hi mate anything coming from the stator plate is ok check kill switch is opening ok and closing it could be nroken good luck also think about replacing plug

magneto stator can also be a solution check for AC power from stator while cranking the motor use sta-bil winterizing fluid to insure piston where during cranking process spray directly into spak plug holes with spark plus out 4 sprays into each cylinder should be enough crank motor without plugs for reduced compression and more cranking amps

Check the side stand kill switch if your bike has one. It kills the engine so that you don’t start out with the side stand down. If broken or out of adjustment, it would kill the spark. Check for a broken wire at the side stand switch and coupler. Try moving the kill switch by hand. If that doesn’t work then wire a jumper around the switch to bypass it. Check the fuses. How good is the battery? Try a jump start from your car battery. Is the handlebar kill switch on? Check the operation of the ignition switch and all kill switches with a volt ohmmeter. Install new spark plug.

If that doesn't do it, check the wiring harness. Did a wire come unplugged? Are all wires clean and with solid connections? Any abraded or pinched wires? Is the bike in neutral and the neutral light is lit up? If no neutral light, check the neutral switch and neutral switch wire on center casing. If still no spark, get CDI system and coils checked at the dealers shop. You can screw up a CDI unit checking it yourself.