2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 44Get this manual
GENERAL INFORMATION NOISE EMISSION CONTROL SYSTEM TAMPERING WitH THE NOISE CONTROL SYSTEM IS PROHIBITED: US Federal laws prohibit, or Canadian provincial Jaws
may prohibit the :following acts or the causing thereof: (1l The removal or rendering inoperative by any person, other than for purposes of maintenance, repair or replacement, of any device or element of design incorporated into any new vehicle
for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use; or (2) the use of
the vehicle after such device or element of design has been removed or rendered inoperative by any person
AMONG THOSE ACTS PRESUMED TO CONSTITUTE TAMPERING ARE THE FOLLOWING ACTS: