8-8E
Assembling the carburetor (Mikuni BST 40)
– Put the needle jet into the carburetor, making sure that the flat
portion
A is located next to the jet needle.
– Put the distance bushing
1 onto the needle jet and mount the main
jet
2.
– Mount the spring, the washer and a new O-ring on the mixture
adjusting screw
3 and twist the mixture adjusting screw all the way
in.
– Then twist the mixture adjusting screw back out, applying the same
number of twists you have written down when disassembling the
device.
– Mount the idling jet
4.
– Insert the float unit
5 into the carburetor.
– Mount the float chamber together with a new gasket and tighten
both screws
6.
A
1
2
3
4
5
6
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