Yamaha YZF-R1 2020 Service Manual page 414

EAS30458
CHECKING THE SECONDARY INJECTORS
(BEFORE REMOVING)
1. Check:
• Injectors
Use the diagnostic code numbers "40"–"43".
Refer to "SELF-DIAGNOSTIC FUNCTION
AND DIAGNOSTIC CODE TABLE" on page
9-40.
EAS30459
REMOVING THE FUEL HOSE (PRIMARY
INJECTOR JOINT SIDE AND SECONDARY
INJECTOR JOINT SIDE)
1. Remove:
• Fuel hose (primary injector joint side and sec-
ondary injector joint side)
EWA17320
WARNING
Cover fuel hose connections with a cloth
when disconnecting them. Residual pres-
sure in the fuel lines could cause fuel to
spurt out when removing the hose.
ECA17490
NOTICE
Be sure to disconnect the fuel hose by hand.
Do not forcefully disconnect the hose with
tools.
TIP
• While pushing the ends "a" of the fuel hose
connector cover "1" in direction "b", slide the
fuel hose connector cover in direction "c", and
then remove the hose from the fuel pump.
• Before removing the hose, place a few rags in
the area under where it will be removed.
• It is prohibited to wear the cotton work gloves
or equivalent coverings.
1
b
b
EAS30460
REMOVING THE SECONDARY INJECTORS
EWA17330
WARNING
• Check the injectors in a well-ventilated area
free of combustible materials. Make sure
that there is no smoking or use of electric
tools in the vicinity of the injectors.
• Be careful when disconnecting the fuel
hose. Any remaining pressure in the fuel
hose may cause the fuel to spray out. Place
a container or rag under the hose to catch
any fuel that spills. Always clean up any
spilt fuel immediately.
• Turn the main switch to "OFF" and discon-
nect the negative battery lead from the bat-
tery terminal before removing the injectors.
1. Remove:
• Fuel tank
• Fuel hose
Refer to "REMOVING THE FUEL TANK" on
page 7-3.
2. Remove:
• Fuel rail screw
• Fuel rail
• Secondary injector joint
• Secondary injector
EAS31663
REMOVING THE AIR FILTER CASE
1. Remove:
• Air filter case cover
7-7
AIR FILTER CASE
c
a