1974 Johnson 40 HP Outboard Motors Service manual, Page 28Get this manual
If "0ring in connector housing is damaged, it will be necessary to replace connector
hous ing as air will ente fuel line and car buretorMotor will rWl out of fuelWhen eassembling the fuel hose, check for cracks in the primer bulb or in the hoseThe primer bulb must be attached so that fuel flow is from the shorter to the longer hose lengthFuel flow through the primer bulb is indicated by an arrow, See Figure 3-28
Figure 3-26Removing Hose Clamp
TESTING FUEL PUMP
Conduct this test on the motor in test tank or on th boataConnect fuel pressure gauge between the carburetor and fuel pump as illustrated in Figure 3- 29Figure 3-27Attaching Hose Clamp
HOSE AND PRIMER BULB ASSEMBLY
CLAMPS To disassemble hose clamps, grip clamp with pliersBend overlapping hook backward (in direc tion of arrow) to release clampSee Figure 3-26To assemble hose clamps, gr ip cla,mp firmly with pliers, Apply slight pressure to hook on top ide with screw driverSqueeze clamp with plie rs until hooks interlockSee Figure 3-27