2009 Arctic Cat 150 ATV Service Manual, Page 52Get this manual
7Install the CVT cooling ducts making sure to align the notches in the boots with the location lugsTighten the clamps securelyTR073A
5Place the two sealing wedges (A) into the cylinder head and secure with the exhaust flange (B)Secure with the two nuts and tighten to 25 ft-lb