it could be a bad spark plug wire or the plug could be gapped to much
A two stroke engine combines the fuel and oil inside the engine. If your plugs keep fouling, that ratio is off and may be related to the choke or air intake.
Correct tuning, correct heat range plug, correct oil/gas ratio for the motor
I have had the same problem with my 2000 explorer time after time my advice is to get rid of it as fast as possible while it is running good , sell it to a car lot.
Try www.bikebandit.com, they have a large selection of oem and aftermarket spark plugs, if you keep fouling plugs try to rejet the carb, or swith to a hotter spark plug.
Spark Plug fouling is pretty common.
A spark plug that is unable to fire due to its oil contamination in its firing cabinet
Someone can miss fire if they have very bad aim plug fouling out (dirty) bad spark plug wire (short)
If a car shakes and loses power when idling it can be the spark plug. If a spark plug is fouling, it can cause power losses.
Bad fuel mixture, jets, carb adjustment. try to keep engine reved high
Because there is a design flaw in the Kawasaki water cooled engine.
leaking spark plug wires can do it and also a clogged fuel filter. it could have a bad spark plug or a bad spark plug wire a bad coil pack or ecsesive oil leaking past the valve seal and its fouling a plug