1970 Johnson 1.5 HP Outboard Motor Service Manual, Page 18Get this manual
3-3 FUEL The fuel tank supplies fuel through gravity flow to the carburetorvent in the filler allows air to enter the tank fuel leavesThe fuel filter is positioned inside the fuel tank and is part of the fuel hose fuel shut-off valve is positiolled in the fuel line directly below the filterFUEL TANK SHUTOFF VALVE FUEL LINE
REMOVAL OF FUEL TANK
Shut fuel supply at fuel shut-off valve, and vent in Figure 3-2Fuel Screws and Fuel Line Lift
Remove spark plug wire and grommetDisconnect the fuel line below the shut-off valvedRemove the screws attaching fuel tank to mounting platefuel tankSee Figure 3-2
REMOVAL OF
AND INTAKE MANIFOLD
Shut off fuel supply at fuel shut-off valveRemove low speed knobRemove port and starboard motor cover screws, and two screws at control panelRemove coverdDisconnect fuel hose at carburetorRemove carburetor 3-3removing the two attaching nutsSee Figure and Figure 3-3Carburetor Attaching Nuts