Mercury 40 FourStroke Maintenance And Installation Manual page 49

5. Move the throttle‑only lever to the fully closed position or press the
throttle‑only button.
a
b
a - Fully closed position
b - Maximum fast idle speed position
6. Starting a flooded engine ‑ Advance the throttle‑only lever or control
handle to the maximum throttle‑only position and continue to crank the
engine for starting. Immediately reduce engine speed after engine starts.
7. Turn ignition key to the "START" position. If the engine fails to start in ten
seconds, return the key to the "ON" position, wait 30 seconds and try
again.
8. After engine starts, check for a steady stream of water flowing out of the
water pump indicator hole.
IMPORTANT: If no water is coming out of the water pump indicator hole, stop
engine and check cooling water intake for obstruction. No obstruction may
indicate a water pump failure or blockage in the cooling system. These
conditions will cause the engine to overheat. Have the outboard checked by
your dealer. Operating the engine while overheated will cause engine damage.
eng
OPERATION
a
b
19804
28521
39
26840