2007-2009 Honda TRX300EX TRX300X service manual, Page 109Get this manual
ENGINE REMOVALINSTALLATION
ENGINE INSTALLATION
During engine 'installation hold the engine securely and take care not to damage the frame and engine,
Using the floor jack or other adjustable support, carefully place the engine into the frame from the left side and maneuver it into placeTemporarily install the all engine hangersbolts and eng ine mounting boltsnuts