1998-2004 Honda Foreman 450 factory service manual, Page 128Get this manual
ENGINE REMOVALINSTALLATION Remove the following:Front differential mounting bolt and nutFront differential mounting bracket bolts and bracketUpper mounting bolt, nut and collar
Be careful not damage the control motor upon engine removal and installation (TRX450ES) ,
Move the engine forward, then disconnect the yoke joint from the final shaftRemove the engine from the left side of the frame
ENGINE INSTALLATION
Apply molybdenum disulfide grease to the yoke joint splinesInstall the eng ine from the left sideMove the engine rearward and connect the final shaft and yoke joint
When installing the engine, loosely install all ofhe engine hanger and bracket boltsThen tighten the bolts to the specified torque as show bellow