Honda Outboards BF40A/BF50A Service Manual, Page 354Get this manual
BF40A-BF50A 21) Remove the two 20 mm hex bolts and mm plain washers and remove the trim angle sensor if necessary22) Remove the 10 mm self-locking nut and remove the 10 mm plain washer and 10 158 mm hexbolt23) Loosen the 78-14 UNF self locking nut24) Lift the left stern bracket and remove the power trimtilt assembly25) Remove the 28 mm wave washer, 19.4 mm thrust washer and distance collar26) Remove the lower cylinder bushings if necessary Replace with new ones when the lower cylinder busings are removed