2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 36Get this manual
MAINTENANCE Spark Plug
1Remove spark plug high tension leadClean plug area so no dirt and debris can fall into engine when plug is removedRemove spark plugInspect electrodes for wear and carbon buildupLook for sharp outer edge with no rounding or erosion of the electrodes
Active Descent Control (ADC) Reservoir Level
The Active Descent Control reservoir (Equipped Models Only) is located by the radiator fill capCheck the level and verify it is between the MAX' and MIN' linesAdd only Polaris ADC fluid when required
Clean with electrical contact cleaner or glass bead spark plug cleaner onlyCAUTION: wire brush or coated abrasive should not be usedMeasure gap with wire gaugeRefer to specifications for proper spark plug type and gapAdjust gap if necessary by bending the side electrode carefullySpark Plug Gap