1999-2004 Honda TRX400EX FourTrax Service Manual, Page 83Get this manual
ENGINE REMOVALINSTALLATION Remove the swingarm pivot nut and boltRemove the engine out of the frame to the right
SWINGARM PIVOT BOLT' -
ENGINE INSTALLATION
Install the engine into the frame from the right side in the reverse order of removalNOTE:
Before installing, make sure that the pivot collars are installed into the swingarm pivotsNote the installation direction of the mounting bolts and the position of the spacersThe front hanger plates are identified by marks them (R: rightl: left)Install the swingarm pivot bolt and nutInstall the lower engine hanger bolt, spacers (Left: shorVRight: long) and nutInstall the front engine hanger plate with the bolts and clampInstall the front engine hanger bolt, spacer (right side of the engine), guide and nutInstall the upper engine hanger bolt, spacers (Left shomight: long) and nut