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5. Turn the throttle spindle (1) and press out the
thrust rod (2) from the lever (3). Then turn the thrust
rod downward and remove the check valve (4). Use
compressed air to clean the check valve and the
strainer. Wash the carburetor and use compressed
air to clean its channels. Then install the check
valve and the strainer.
NOTE! Don't forget the copper washer! Turn the
throttle shaft and press in the thrust rod into the
lever.
6. Install the idle jet (1), the main jet (2) and the
mixture screw (3).
NOTE! The copper washer on the main jet! Install
the emulsion jet (4), the acceleration jet (5) and the
gasket (6). Put the float (7) into the float housing
and add a new gasket (8) and tighten the top cover
of the carburetor to the carburetor housing. Remove
the nut (9) and the levers to be able to replace the
spring (10).
34
Early version
The Solex carburetor is available with earlier or later
production versions of the butterfly valve housing.
The setting of the idle screws differs between the
earlier and later versions according to the chart.
Setting the idle screws (B):
Tighten the screw until it touches the carburetor le-
ver. Then tighten further according to the chart.
Early version
AQ131
230
AQ151
250
AQ171
251DOHC
Setting of the idle mixture screws (A):
Bottom the screw lightly against the seat. Then back
it out according to the chart.
Early version
AQ131
230
AQ151
250
AQ171
251DOHC
Late version
Late version
2
2
–
2
1½
1
–
1
1½
1¼
–
1¼
Late version
2
9 ½
–
9 ½
2
8
–
8
2
10
–
10
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