2011 Polaris Ranger RZR ATV Service Manual, Page 31Get this manual
MAINTENANCE Engine Breather Hose Inspection
The engine is equipped with breather hoseInspect the breather hose for possible kinks or wearThe hose is form fitted for proper fitFollow the breather hose from the side of the airbox to the engine valve cover
ExhaustSpark Arrestor WARN G
Do not clean spark arrestor immediately after the engine has been run, as the exhaust system becomes very hotSerious burns could result from contact with the exhaust componentsAllow components to cool sufficiently before proceedingWear eye protection and glovesNever run the engine in an enclosed areaExhaust contains poisonous carbon monoxide gas that can cause loss of consciousness or death in very short timePeriodically clean spark arrestor to remove accumulated carbon
Breather Hose
Remove the retaining screw, washer and spark arrestor from the end of the silencerUse non-synthetic brush to clean the arrestor screenA synthetic brush may melt if components are warmInspect the screen for wear and damageReplace if neededReinstall the arrestor and torque the screw to 40 inlbs(4.5 Nm)