Fuel Cock - Yamaha YFM90 2019 Owner's Manual

Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
6.6 L (1.7 US gal, 1.5 Imp.gal)
Fuel reserve amount:
0.9 L (0.24 US gal, 0.20 Imp.gal)
1
E5
1. EN228 fuel identification mark
TIP
Confirm the gasoline pump nozzle has the same
fuel identification mark.
E10
4-10
About the recommended fuel
This model's engine has been designed to use
regular unleaded gasoline. The research octane
number should be 95 or higher. If knocking or
pinging occurs, try a gasoline of a different brand
or higher octane.
TIP
Gasoline containing ethanol can be used if the
ethanol content does not exceed 10% (E10). Gas-
oline containing methanol is not recommended
because it can cause damage to the fuel system
or vehicle performance problems.
ECB00071
NOTICE
Use only unleaded gasoline. The use 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.
EBU18821

Fuel cock

The fuel cock supplies fuel from the tank to the
carburetor while also filtering it.
The fuel cock lever positions are explained as fol-
lows and shown in the illustrations.
4