Derbi GPR 125 Racing Workshop Manual page 94

- The absence of scratches on the minimum circuit air regu-
lator screw cone. These would affect its performance.
- The absence of scratches on the sliding valve. => In the
event of these exceeding 25% of its total area, renew it.
N.B.
BE SURE TO FIT A VALVE WITH THE SAME CHARACTERISIT-
CS (SEE MARKINGS ON ITS BASE).
R
EFITTING G
This is a reversal of the "REMOVAL" procedure.
Take care with the following points:
1. Fit:
- Spring (closing valve).
- Closing valve assembly
With the carburettor cover and throttle cable.
- Spring (choke).
- Choke assembly.
With the choke and choke cable.
2. Fit:
- Carburettor.
3. Tighten:
- Clip (air filter box).
- Clamp screws.
4. Connect:
- Drain hose.
- Breather pipe.
- Fuel pipe.
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