Yamaha F4A Owner's Manual page 57

3. Drain the fuel from the carburetor, fuel
filter, and fuel line. Drain the engine oil
completely.
4. Fill the sump with the fresh engine oil.
Engine oil capacity:
0.5 L (0.53 US qt) (0.44 Imp.qt)
5. Feed engine fogging oil or engine oil
through the carburetor(s) and spark plug
holes while cranking the engine with the
manual starter or emergency starter
rope.
6. Take the outboard motor to a Yamaha
dealer as soon as possible.
ECM00400
CAUTION:
Do not attempt to run the outboard motor
until it has been completely inspected.
ZMU02724
ZMU02725
Trouble Recovery
52