NOTE: Some jumper cables may be the same color but the clamps or ends will be color-coded red and black. To help prevent cold weather fouling, make sure to thoroughly warm up the engine before operating. To maintain a hot, strong spark, keep the plug free of carbon. 7. Attach one clamp of the negative (black) jumper cable to the negative (-) terminal (3) of the good battery (B); then attach the other clamp of the negative (black) jumper cable (4) to an unpainted metal surface (A) on the engine or frame well away from the dead battery and fuel system components. 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. Adjust to the recommended gap for proper ignition. Use a wire-type feeler gauge to check the gap. ! WARNING Never make the final connection to a battery as a spark could ignite hydrogen gases causing an explo- sion of the battery resulting in acid burns or blindness. 8. Stand well away from the dead bat- tery and start the vehicle with the good battery. Allow the vehicle to run for several minutes applying some charge to the dead battery. When installing the spark plug, be sure to tighten it securely. A new spark plug should be tightened 1/2 turn once the washer contacts the cylinder head.
A used spark plug should be tightened 1/8- 1/4 turn once the washer contacts the cyl- inder head. Engine Idle RPM Adjustment (350) To properly adjust the idle, a tachometer is necessary. If one is not available, take the ATV to an authorized Arctic Cat ATV dealer. 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. Spark Plug The ATV comes equipped with a speci- fied spark plug.
See the Specifications chart for the correct spark plug and the correct gap. A light brown insulator indi- cates that the plug is correct. A white or dark insulator indicates that the engine may need to be serviced or the carburetor (on the 350) may need to be adjusted. Consult an authorized Arctic Cat ATV dealer if the plug insulator is not a light brown color. 1. Start the engine and warm it up to normal operating temperature. 2. Remove the seat; then turn the idle adjustment screw in or out until the engine idles at 1250-1350 RPM. 56 56 56 56