2009 Polaris Outlaw 450/525 Service Manual, Page 41Get this manual
MAINTENANCE 2Remove spark plug high tension leadClean plug area so no dirt and debris can fall into engine when plug is removedRemove spark plug and inspect electrode for wear and carbon buildupThe insulator tip should be light tan color, indicating good combustionLook for sharp outer electrode edge with no rounding or erosionIf needed, clean spark plug with electrical contact cleaner or glass bead spark plug cleaner only
STEERING
General Steering Information
The steering components should be checked periodically for loose fasteners, worn tie rod ends, ball joints, and damageAlso check to make sure all cotter pins are in placeIf cotter pins are removed, they must not be reusedAlways use new cotter pinsReplace any worn or damaged steering componentsSteering should move freely through the entire range of travel without bindingCheck routing of all cables, hoses, and wiring to be sure the steering mechanism is not restricted or limitedNOTE: Whenever steering components are replaced, check front end alignmentUse only genuine Polaris parts4