Gilera Runner Purejet 2007, Workshop Manual, Page: 176 / 257

14. Detach the fuel return duct and prepare an ad-
equate container for the collection of fuel.
Keeping the ammeter attached to pins 1 - 14 on
the interface wiring, run the pump for one minute
while turning the key-switch to «ON» (record the
time taken for the fuel to reach the container).
Check the following conditions:
Fuel quantity supplied in 1 minute at a pres-
sure of 2.5 BAR: approximately 125 cm3
Admissible limit:..............cm3
NO point 15 YES point 16
15. The return flow rate is below specs.
Check and replace the fuel filter if necessary.
If necessary, check the tank flow rate.
GO TO point 14
N.B.
WHEN THE FUEL FILTER IS VERY DIRTY, AIR MAY BE SUCKED THROUGH THE BLEED DUCT.
THIS CAN DAMAGE THE FUEL PUMP.
16. Detach the special tool ammeter.
Reattach the ECU connector.
Reattach the return duct to the tank.
Start the engine and check the following condi-
tions:
Injection air pressure = 5 - 5.5 BAR
Fuel pressure = 7.5 - 8 BAR
NO point 17 NO point 18 YES point 19
17. The fuel pressure is not to spec.
The pressure regulator is not calibrated.
Replace the injector mounting assembly with the pressure regulator.
18. The air and fuel pressure is not to spec.
Carry out the inspections outlined in the compressed air system section.
pure jet injection
Runner Purejet
INJ PJ - 176