Adjusting The Engine Idling Speed - Yamaha YZF-R1 Owner's Manual

1. Fuel tank breather hose
2. Fuel tank overflow hose
WARNING
_
G
Before installing the fuel tank,
make sure that the fuel hoses
are not damaged. If any fuel
hose is damaged, do not start
the engine but have a Yamaha
dealer replace the hose, other-
wise fuel may leak.
G
Make sure that the fuel hoses
are properly connected and
routed, and not pinched.
G
Be sure to place the fuel tank
breather hose and the fuel tank
overflow hose in the original po-
sition.
_
10. Install the rider seat.
PERIODIC MAINTENANCE AND MINOR REPAIR
Adjusting the engine idling
speed
The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
1. Start the engine and warm it up
for several minutes at 1,000–
2,000 r/min
EWA00067
revving it to 4,000–5,000 r/min.
NOTE:
_
The engine is warm when it quickly re-
sponds to the throttle.
_
EAU00632
1. Throttle stop screw
while occasionally 2. Check the engine idling speed
NOTE:
_
If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
_
6-18
and, if necessary, adjust it to spec-
ification by turning the throttle stop
screw. To increase the engine
idling speed, turn the screw in di-
rection a. To decrease the engine
idling speed, turn the screw in di-
rection b.
Engine idling speed:
1,000–1,100 r/min
6