1999-2002 TRX400EX Fourtrax Service Manual, Page 53Get this manual
MAINTENANCE
SPARK ARRESTER
Wait until the exhaust system has cooled before removing or installing the arresterTouching the hot exhaust may result insevere bums
Remove the three bolts and the spark arrester with the gasket
Use brush to remove carbon deposits from the screen mesh, being careful notto damage the screen meshThe screen mesh must be free of breaks and holesReplacethe spark arrester if necessaryI nstall the spark arrester with new gasket and tig hten the bolts securely
SOFT BRUSH