2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 161Get this manual
FUEL SYSTEM (After '05) Tighten the carburetor insulator and connecting hose band screws as shown121 mm (0.47 0.04 in)
TRX450R only: Install the valve spring over the starter cable and connect the cable end to the hot start valveInstall the hot start valve to the carburetor body, and tighten the lock nut to the specified torqueTORQUE: 2.1 (0.2 kgf-m, 1.5 Ibf-ft) Install the heat guard plate (page 3-9)