Honda BF135A, BF150A Outboard Motors Shop Manual., Page 431Get this manual

Honda BF135A, BF150A Outboard Motors Shop Manual., Page 431

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BF135ABF150A
Take care not to damage the crankcase and lower block mating surfaces
6) Remove the crankcase and the two dowel pins from the lower block
[2] 13x20mm
DOWEL PIN (2)