Honda BF35A-BF45A Outboard Motors Shop Manual., Page 310Get this manual
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[VACUUM TUBE (3) (3.5 45 mm) [241 AIR VENT TUBE (3) (4.5 93 mm)
[16] AIR VENT TUBE
[I51- AIR VENT TUBE (4.5 170 mm)
[A413-WAY JOINT A
[ TUBE CLIP B1