Mercury 10 EFI FourStroke Installation, Operation & Maintenance Manual page 70

1. Open the fuel tank vent screw on the manual venting type tanks.
a
2. Position the fuel line primer bulb so the arrow on the side of the bulb is
pointing up. Squeeze the fuel line primer bulb several times until it feels
firm.
3. Set the lanyard stop switch to the RUN position. Refer to General
Information ‑ Lanyard Stop Switch.
OPERATION
b
c
46290
27348
19791
60
a - Fuel cap
b - Manual vent screw
c - Tab lock
eng