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Kawasaki MX & Off-Road Dirt Bikes
Help, KX250 won't spark
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[QUOTE="jaguar, post: 1340580, member: 19340"] [b]figuring it out[/b] I'm an electronics technician. Can your meter read AC voltage? If so, then disconnect the stator wires from the CDI and read the voltage coming from the stator coil when you turn the engine over quickly with your hand or foot on the kickstarter with the spark plug removed (so there's no compression). If it's over 50 volts then the stator coil is probably good. If good, then reconnect it to the CDI and disconnect the CDI wire from the spark coil. Set the voltmeter on DC volts (around 50 volts max) and connect the positive red lead of the meter to the frame. Connect the black lead of the meter to the wire from the CDI. The meter should jump a bit when cranking the engine because the CDI should output the voltage from the stator, but this output should be just one quick spike of voltage just a fraction of a second long. Some meters probably won't even move their needle. Digital meters definitely won't show anything. You could probably put your pinkie finger on the frame while holding the CDI's output wire between your thumb and first finger and feel for the voltage spike. If there is some output then the CDI is working. When they go bad they don't output anything at all. So if its good then all that is left is the spark coil. [/QUOTE]
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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
Help, KX250 won't spark
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