Yamaha 55DEHD - Checking the Connecting Rod Small End Axial Play; Disassembling the Upper Bearing; Assembling the Upper Bearing

POWR
5-29
6885J11
Power unit
Assembling the upper bearing
1. Apply grease to the new oil seal 1, new
O-ring 2, and then install them onto the
upper bearing.
1
3
2
68850580
Bearing inner race attachment 3:
90890-06640
Checking the connecting rod small
end axial play
1. Install the bearing and connecting rod.
2. Measure the connecting rod small end
axial play. Replace the bearing and con-
necting rod if above specification.
NOTE:
To measure the axial play, set the dial gauge
at the connecting rod small end and parallel
to the crankshaft.
Disassembling the upper bearing
1. Remove the O-ring and oil seal.
69R50340
68850460
Connecting rod small end
axial play limit:
2.0 mm (0.08 in)
6885J11_05 07.9.26 15:44 Page 32