Fuel Tank Breather Hose And Overflow Hose - Yamaha YZF660N 2022 Owner's Manual

ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
Your Yamaha engine was designed to
use unleaded gasoline with a research
octane number of 90 or higher. If en-
gine knocking or pinging occurs, use a
gasoline of a different brand or higher
octane rating.
Recommended fuel:
Unleaded gasoline (E10 acceptable)
Octane number (RON):
90
Fuel tank capacity:
13 L (3.4 US gal, 2.9 Imp.gal)
Fuel tank reserve:
2.5 L (0.66 US gal, 0.55 Imp.gal)
Gasohol
There are two types of gasohol: gaso-
hol containing ethanol and that con-
taining methanol. Gasohol containing
ethanol can be used if the ethanol con-
tent does not exceed 10% (E10). Gas-
ohol containing methanol is not
recommended by Yamaha because it
can cause damage to the fuel system
or vehicle performance problems.
NOTICE
Use only unleaded gasoline. The use
EAU86081
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.
4-17
Instrument and control functions
Fuel tank breather hose and
overflow hose
ECA11401
YZF660N
1. Fuel tank breather hose
2. Fuel tank overflow hose
3. Clamp
YZF690N
1. Fuel tank overflow hose
2. Clamp
EAU92541
1 1 1
2 2
3 3
1 1 1
2 2
4