Honda BF135A, BF150A Outboard Motors Shop Manual., Page 449Get this manual
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BF135ABF150A
87.0187.02 mm (3.42563.4260 in) 87.0087.01 mm (3.42523.4256 in)
87.07 mm (3.4279 in) 87.07 mm (3.4279 in)
NO.1 CYLINDER
NO.4 CYLINDER