Fuel Supply - Gilera DNA 50 Workshop Manual

DNA 50

Fuel supply

The vehicle comes with a membrane pump con-
trolled by the depression that is generated in the
intake manifold. Therefore, the tank has an intake
in the lowest point that sends the fuel to the pump
and from here to the carburettor.
To determine the correct functioning of the pump,
the following measurements can be made on the
amounts distributed:
1) Start up the engine, bring it to normal operating
temperature and then shut it off.
2) Disconnect the fuel adduction line on the car-
burettor and insert it into a graduated tube.
3) Start up the engine without the accelerator and
keep it idle.
4) After the engine is started, count to 10 and then
turn it off.
5) Check that the quantity of fuel is not less than
the prescribed value.
Characteristic
Fuel distributed
~100cc X 10"
Engine
ENG - 91