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31/CARBURETOR
Checking/adjusting the throttle slide opening
21.16
Info
The basic setting of the throttle slide is used to check the beginning of injection of the accelerator pump and the basic setting
of the throttle position sensor.
Checking the needle jet
21.17
Checking the float needle valve
21.18
Condition
The carburetor has been removed.
–
Check the throttle slide opening using a wire or a drill shank.
Throttle slide opening
»
If the throttle slide opening does not meet specifications:
–
Adjust the throttle slide opening with adjusting screw
301567-10
Condition
The needle jet has been removed.
–
Use a new jet needle as a gauge. On the jet needle, make a mark
level
at a distance
Guideline
Distance
Info
The marking must be completely removable.
700053-10
–
Insert the marked jet needle into the needle jet to be tested. Push the two parts
together carefully.
–
Check the needle jet.
»
If marking
jet:
–
Change the needle jet.
700054-10
Condition
The float needle valve has been removed.
–
Check the float needle valve and the valve seat for deposits.
»
If deposits are present:
–
Clean the valve seat. Clean or change the float needle valve.
Carburetor cleaner (
–
Check the float needle valve for wear and check the sealing areas for notches.
»
If the sealing area is damaged or worn:
–
Change the float needle valve.
700057-10
1 mm (0.04 in)
.
3 mm (0.12 in)
is not visible on the jet needle at the upper edge
p. 225)
173
.
above the
of the needle
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