9. Start the vehicle with the dead bat- tery and allow it to run for several minutes before disconnecting the jumper cables. 10. Remove the jumper cables in oppo- site order of hook-up (4, 3, 2, 1). Be careful not to short cables against bare metal. NOTE: Have the battery and elec- trical system checked prior to oper- ating the vehicle again. ATV-0052 A new spark plug should be tightened 1/2 turn once the washer contacts the cylinder head. A used spark plug should be tight- ened 1/8 - 1/4 turn once the washer contacts the cylinder head. Spark Plug(s) This vehicle comes equipped with a speci- fied spark plug. See the specifications chart for the correct spark plug.
A light brown insulator indicates that the plug is correct. A white or dark insulator indicates that the engine may need to be serviced. Consult an authorized Arctic Cat dealer if the plug insulator is not a light brown color. To help prevent cold weather foul- ing, make sure to thoroughly warm up the engine before operating. Air Inlet Pre-Filter (HDX) This vehicle is equipped with a foam pre- filter to filter dirt from the inlet air prior to reaching the main air filter. NOTE: To access the pre-filter, remove the seat and backrest; then remove the seat base. To maintain a hot, strong spark, keep the plug free of carbon. 1.
Gently squeeze the pre-filter cover and lift it up to expose the pre-filter. ATV-0051 Before removing the spark plug, be sure to clean the area around the spark plug. If you do not, dirt could enter engine when removing or installing the spark plug. HDX237A 2. Loosen the clamp securing the pre- filter. Adjust the gap (see specifications chart) for proper ignition. Use a feeler gauge to check the gap. HDX235 47