1986-1991 Kawasaki 650 X-2 Service Manual, Page 87Get this manual
DRIVE SHAFT 9-5 Olnstall the seal,s so that the sides with the spring face outwardoFilil the gaps between the seals with greaseeApply non-permanent locki ng agent to the drive shaft holder mounting bolts, tighten them loosely el'nstall the drive shaftelnstall the engine (see Engine Removallnstallation chapter)
OAfter installation the engine, tighten the drive shaft holder mounting bolts to the specified torque (see Exploded View) to give proper coupling alignment