Honda BF135A, BF150A Outboard Motors Shop Manual., Page 94Get this manual
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BF135A-BF150A Replacement:
0.98R (1.04 US qt, 0.86 Imp qt) MARINE SAE 90 Hypoid gear oil API Service classification (GL-4)
[1] 5.5 1.5 mm O-RING
6) After adding the gea