2006-2009 Yamaha YFM700RV Raptor 700RV factory service manual, Page 119Get this manual
CLEANING THE SPARK ARRESTER
aRemove the bolt 1bRemove the tailpipe by pulling it out of the mufflercTap the tailpipe lightly with soft-face hammer or suitable tool, then use wire brush to remove any carbon deposits from the spark arrester portion of the tailpipe and inside of the tail pipe housingdInsert the tailpipe into the muffler and align the bolt holeseInsert the bolt and tighten itBolt Nm (0.8 kg, 5.8 ft lb)