2001-2005 Honda TRX250EX Sportrax TRX250EX Factory Service Manual, Page 84Get this manual
ENGINE REMOVALINSTALLATION Apply molybdenum disul fide grease to the universal joint splines and the countershaft splines
Install the engine in the frameMove the engine rearwar and engage the count ershaft into the universal joint into the swingarm
Place jack or other adjustable suppo rt under the engineNOTE: The jack height must be continually adjusted to relieve stress fo ease bolt inst allation