Yamaha F150A Service Manual

Also see for F150A: Rigging guide Service manual Owner's manual Owner's manual Owner's manual

7-68CrankcaseTIP:In the third tightening stage for the connect-ing rod bolts “1”, mark the connecting rodbolts and the connecting rod cap with identifi-cation marks “a”, and then tighten the bolts90° from the marks on the connecting rodcap.6. Remove the connecting rod cap, andthen measure the width of the com-pressed Plastigauge (PG-1) on thecrankpin.Selecting the crankpin bearingWhen replacing the crankpin bearing, selectthe bearing as follows:1. Measure the connecting rod big endinside diameter “a”.Example:2. Check the crankpin mark “a” on thecrankshaft.3. Select the suitable colors “1” for thecrankpin bearing from the “Crankpinbearing selection table”.Connecting rod bolt “1”:1st: 13 N·m (1.3 kgf·m, 9.6 ft·lb)2nd: 23 N·m (2.3 kgf·m, 17.0 ft·lb)3rd: 90°Big end oil clearance:0.030–0.057 mm (0.0012–0.0022 in)90˚a1Connecting rod big end inside diameter“a”:53.025–53.045 mm(2.0876–2.0884 in)Connecting rod bigend inside diameter“a”Number in table53.035 mm 35aPJP1P2 P3P4aP1 P4P2 P3