it could be a bad spark plug wire or the plug could be gapped to much
The spark plug gap on a 2000 Kodiak 400 is .024
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.
Correct tuning, correct heat range plug, correct oil/gas ratio for the motor
It is located behind the front right panel.
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.
Spark Plug fouling is pretty common.
A spark plug that is unable to fire due to its oil contamination in its firing cabinet
.6mm or 23/1000's
Someone can miss fire if they have very bad aim plug fouling out (dirty) bad spark plug wire (short)
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
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.
Valve guides are worn and piston rings are worn crank case oil seeping up to spark plug fouling them change spark plugs or try irridum plugs they sometimes work in engines that consume oil.