Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 281Get this manual
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Fuel Line (22) Tube routing (P2-30)
1121 FUEL TUBE CLAMP A
5.3 175 mm 1141 VACUUM TUBE D
[81 FUEL TUBE I
1151 AIR VENT TUBE 5.3 55 mm
1 61 3-WAY JOIN