Because there is a design flaw in the Kawasaki water cooled engine.
front hud
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.
Oil and gas mixture too rich. : o )
According to the Gator manual the gap is 0.8mm or 0.032 in.
John Deere makes good lawn mower replacement parts. I would probably go with John Deere or Honda spark plugs, if I had to make a decision on what brand to get.
The 8.1 is a diesel motor, no spark plugs.
Iridium plugs can offer better performance and longevity compared to standard plugs, and their design helps reduce fouling due to improved spark efficiency and heat dissipation. However, if your 1997 GSX-R 750 is experiencing plug fouling due to underlying issues like improper tuning, fuel mixture, or engine problems, simply switching to iridium plugs may not resolve the issue. It’s essential to address the root cause of the fouling for a long-term solution.
Correct tuning, correct heat range plug, correct oil/gas ratio for the motor
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.
Diesel engines don't have spark plugs.
it could be piston rings letting oil get on them it happened to mine
Bad fuel mixture, jets, carb adjustment. try to keep engine reved high