2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 194Get this manual
ENGINE REMOVALINSTALLATION After '05Connect the lower radiator hose to the water pump cover and tighten the hose band screw securely
LOWER RADIATOR HOSE After '05: Connect the crankcase breather hoses to the 3-way jointInstall the hose clamps onto the breather hoses
TRX450ER only: Connect the neutral switch connector