Polaris 9919510 Owner's Manual For Maintenance And Safety page 131

MAINTENANCE AND LUBRICATION
Spark Arrestor Clean-Out
WARNING
Do not perform clean-out immediately after the engine has been run, as the exhaust
system becomes very hot. Serious burns could result from contact with the exhaust
components.
Wear eye protection and gloves.
Never run the engine in an enclosed area. Exhaust contains poisonous carbon
monoxide gas.
Failure to heed these warnings could result in serious injury or death.
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