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Basic Operating Instructions
Starting & Stopping the Engine
Flooded Engine
Starting the engine after a stall during riding or
after a fall:
1. Shift the transmission into neutral.
2. Pull the hot start lever all the way in and start
the engine. (Do not open the throttle.)
3. As soon as the engine starts, release the hot
start lever.
Starting a flooded engine:
(Using the start button)
1. Do not use the choke.
2. Shift the transmission into neutral with the
throttle fully opened.
3. Pull the clutch and hot start levers all the
way in and depress the start button for 5
seconds. If the engine starts, quickly close
the throttle, then open it slightly if idling is
unstable. If the engine does not start, wait 10
seconds, and then follow the regular starting
procedure.
4. As soon as the engine starts, release the hot
start lever.
(Using the kickstarter)
1. Do not use the choke.
2. Shift the transmission into neutral with
the throttle fully opened, repeat kickstarter
operation approximately ten times very
slowly to discharge excessive fuel from the
engine. Close the throttle.
3. Pull the hot start lever all the way in and start
the engine. (Do not open the throttle.)
4. As soon as the engine starts, release the hot
start lever.
How to Stop the Engine
(1)
(2)
(1) throttle
(2) engine stop button
Normal Engine Stop
1. Shift the transmission into neutral.
2. Turn the fuel valve OFF.
3. Lightly open the throttle (1) two or three
times, and then close it.
4. Push the engine stop button (2) until the
engine stops completely.
Failure to close the fuel valve may cause the
carburetor to overflow, result in hard starting.
Emergency Engine Stop
To stop the engine in an emergency, push the
engine stop button.
Hot Engine Starting
1. Pull the hot start lever (3) all the way in
and start the engine following step 4 under
“Normal Air Temperature.”
2. As soon as the engine starts, release the hot
start lever.
(3)
(3) hot start lever
Snapping the throttle or fast idling for more than
5 minutes may cause exhaust pipe discoloration.
17 CRF450X̲31MEY710.indb 16
17 CRF450X̲31MEY710.indb 16
2016/06/08 11:45:33
2016/06/08 11:45:33