Yamaha F40A - Page 20

EMU01429
GASOLINE (PETROL)
Standard Model
Unleaded fuel will give you longer spark
plug life and reduced maintenance costs.
If unleaded gasoline is not available, then
leaded regular gasoline (petrol) can be
used.
If leaded gasoline (petrol) is usually used,
engine valves and related parts should be
inspected after every 100 hours of opera-
tion.
Emission Control Model
NOTE:
If knocking or pinging occurs, use a differ-
ent brand of gasoline (petrol) or premium
unleaded gasoline.
1-6
GB
Recommended gasoline (petrol):
Regular unleaded gasoline (petrol)
with a minimum octane rating of 91
(Research Octane Number)
Recommended gasoline (petrol):
Regular unleaded gasoline (petrol)
62Y-9-78 (E,F,ES) 1 5/25/00 4:07 PM Page 18