2002/2003 Johnson SN/ST 2 Stroke 3.5, 6 8 HP Outboards Service Manual, PN 5005466, Page 40Get this manual
INSTALLATION AND PREDELIVERY FUEL SYSTEM REQUIREMENTS68 Use the stern brackets as template for location and size of holes to drill in the transomThe stern bracket assembly has mounting holes on each side of the outboardDrill one hole for each sideDrill holes perpendicular to transom surfaceUse the upper holes unless your situation requires using the lower holes (2530 models)Apply marine sealant generously behind the heads and to the shanks of the mounting bolts before inserting them, and to the surfaces of washers that contact the transom Secure the outboard to the boat's transom using the mounting hardware provided
Fuel Hose
All fuel hoses must be designated as fuel hose and approved for marine use Use only fuel lines (or copper tubing) that meet the outboard minimum I.Drequirement "USCG Type 1" fuel hose must be used between permanent fuel tanks and motor well fittings on inaccessible routings Use "USCG Type B1" for fuel hose routings in motor well areas Use corrosion-resistant metal clamps on permanently installed fuel hoses routed below decks Multi-outboard applications require separate fuel tank pickupsInstall separate fuel hoses from the fuel tank to the outboards in multi-outboard applications