DS 19 OPERATION No. DS 142-1 : Replacement of a carburettor. Op. DS 142-1 103
TOOLS
REMOVAL.
1 Disconnect the petrol feed pipe from the carburettor.
2 Loosen the clip fixing the tube between the carburettor and the air filter and remove the tube.
3 Disconnect the choke control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 mm box spanner
4 Disconnect the accelerated idling control (take care of the washers between the control and the carburettor) . . . . 8 mm ring spanner
5 Disconnect the cruciform coupling controlling the throttle valves on the carburettor . . . . . . . . . . . . . . . . . . . . . . . . 7 mm box spanner
6 Remove the carburettor (spanner 1623-T, see Pl. 16, fig. 2). Remove the joint . . . . . . . . . . . . . . . . . . . . . . . . . . Spanner 1623-T
FITTING
7 Fit the carburettor, putting the joint in position.
8 Slightly raise the carburettor to enable the nuts to be fitted.
Insert under each nut: a plain washer and a spring washer.
Tighten the nuts (spanner 1623-T, see pl. 16, fig. 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Spanner 1623-T
9 Couple up the throttle control. Insert plain washers under the nuts. Tighten the locknuts . . . . . . . . . . . . . . . . . . . 7 mm box spanner
10 Couple up the accelerated idling control. Insert a plain washer between the accelerated idling control and the
carburettor and a second plain washer and a spring washer under the heads of the screws. Tighten the screws. 8 mm ring spanner
11 Couple up the choke control. Make sure that it opens and closes correctly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 mm box spanner
12 Fit the tube between the carburettor and the air filter and tighten the clip.
13 Couple up the petrol feed pipe to the carburettor.
14 Adjust the slow running (see Op. DS 142-0).
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