Yamaha F150B Service Manual
Also see for F150B: Owner's manualService manualOwner's manual
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Contents
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7-60Crankcase012345678910ATIP:When loosening the main bearing bolts andcrankcase bolts, loosen them in the oppositeorder used for tightening.Selecting the main bearing1. When replacing the main bearing, selectthe suitable bearing as follows.2. Check the crankshaft journal mark a onthe crankshaft and the cylinder blockmark b on the cylinder block.3. Select the suitable color c for the mainbearing from the table.Example:If the crankshaft journal mark a is “89” andthe cylinder block mark b is “28,” and thenselect the bearing colors in “g.”TIP:J3 is a thrust bearing.Crankshaft main journal oil clearance:0.021–0.050 mm (0.0008–0.0020 in)aJ1 J2 J3 J4 J5J1J2 J3 J4J5J5 J4 J3 J2 J1 bUpper bearingcolorLower bearingcolord Green Greene Green Redf Red Redg Red Yellowh Yellow Yellowi Yellow Blue + GreenccCylinder block mark bdefghiCrankshaft journal mark a20808182838485868788899091929394959697989900212223242526272829303132333435363738 |
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