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Derbi GP1 125-250 c.c. Workshop Manual Page 162

Gp1 125-250 c.c..
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- Check that the float exhibits no wear on the pin seat or on the
plate in contact with the pin, or fuel infiltrations.
- In case of anomalies, replace.
- Insert the float with the pin on the fuel feeding side.
N.B.
BE CAREFUL TO THE PROPER INSERTION OF THE RETURN
SPRING ON THE FLOAT PLATE.
- Remove the basin drainage screw and wash and blow the
basin, be especially careful to the cleaning of the pickup pump
ducts.
- Repeatedly actuate the pickup pump piston and blow with
compressed air.
- Replace the pickup pump valves in a sequence:
INTAKE VALVE (A)
- Spring
- Sphere
- Nozzle
DELIVERY VALVE (M)
- Spring
- Nozzle
- Sphere
N.B.
THE DELIVERY VALVE NOZZLE IS PROVIDED WITH A MILLING.
- Check the screw seal by pouring a small amount of fuel into
the basin.
- Install a new gasket on the basin.
- Install the basin on the carburettor body and tighten the 4
screws.
- Check that the control roller is free to rotate into its seat.
N.B.
CHECK THE PROPER INSERTION OF THE GASKET.
N.B.
AVOID ANY DEFORMATION OF THE PICKUP PUMP CONTROL
ROCKER.
161

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  • LIAM May 27, 2017 06:12:
    HI HAVE JUST BOUGHT A DERBI 125 CC CROSS CITY, REALLY WOULD LIKE TO BUY A WORKSHOP MANUAL PLEASE CAN YOU HELP