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3. Put the coolant and pull out the
connection plug
a. Place suitable utensils under the big arrow, use
water clamp pliers to remove the green hoop pointed by
the big arrow, pull out the engine water inlet pipe, and let
out the coolant; then use a single batch to remove the
clamp pointed by the small arrow and pull it out The inlet
pipe of the small water tank discharges the coolant.
b. Unplug the high-voltage package plug from the
engine head.
c. Refer to the steps in "Remove the Throttle Valve
Body Assembly to Clean Carbon Deposits" and unplug
the plugs of the stepping motor â‘ and the three-in-one
sensor â‘¡ on the throttle valve body.
d. Locate and unplug the plugs of the high-pressure
fuel pipe â‘¢ and the fuel injector â‘£ at the front end of
the throttle valve.
Caution: A small amount of fuel will flow out when the
high-pressure oil pipe is pulled out, and it is forbidden to
drip onto the surface of the part.
e. Locate and unplug the crankshaft position sensor
⑤ and the oxygen sensor ⑥ in the frame position on
the right.
Caution: One end of the crankshaft position sensor is
connected to the inside of the engine, one end is
connected to the main cable; one end of the oxygen
sensor is connected to the engine in front of the muffler,
and the other end is connected to the main cable; do not
unplug the wrong plug.
f. Locate and pull out the plug of the magneto stator
charging cable ⑦ at the left frame.
Caution: One end of the magneto stator charging cable
is connected to the inside of the engine, and one end is
connected to the connector on the rectifier; do not pull
out the wrong plug.
g. Use an 8# sleeve to remove a bolt on the starter
motor, and take out the negative wire ⑧ on the bolt.
Caution: The negative wire of the early production
model is fixed on the bolt around the starter motor.
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