Honda BF75A Owner's Manual page 55

VENT KNOB
O O P P E E N N
(Equipped type)
3. Open the fuel cap vent knob 2 to 3
turns.
4. Hold the priming bulb so that the
outlet end is higher than the inlet
(so that the arrow on the priming
bulb points up), and squeeze it
until it feels firm, indicating that
fuel has reached the motor. Check
for leaks.
Be careful not to spill any fuel.
Spilled fuel vapor may ignite. If
any fuel is spilled, make sure
the area is dry before starting
the engine.
STARTING THE ENGINE
OUTLET END (MOTOR SIDE)
PRIMING BULB
INLET END (FUEL TANK SIDE)
Do not touch the priming bulb
while running the engine.
Carburetor could overflow.
55