Gilera Runner RSTPurejet Service Manual page 127

Runner RST Purejet
pure jet injection
25- The supply meets specs.
26- Check the efficiency of the 20A fuse and of the
connections to the fuse-holder (red - blue).
YES point 27 NO point 28
27- Restore the continuity of the line connecting
fuse with pin 15 (blue cable).
GO TO point 24
28- If connections meet specs and the fuse is
burnt, proceed as follows. Disconnect the follow-
ing connectors:
- air injector
- fuel injector
- H.V. coil
- Voltage adjuster
GO TO point 29
29- Remove the burnt fuse. Check the mass insu-
lation of the pin 15 supply line.
1 - 15 = Ohm infinite
YES point 31 NO point 30
30- Restore the wiring insulation.
GO TO point 29
31- Connect the specific tool to the ECU. Mount a
new 20A fuse. Check the presence of battery volt-
age between pin 15 and pin 1 ( the fuse does not
burn)
1 - 15 = V battery
YES point 33 NO point 32
32- The fuse is again burnt. Check the wiring more
accurately and, if necessary, replace the ECU.
GO TO point 31
33- Make a good visual check of the wiring to avoid
possible causes for short circuits. If there are no
faults, check any possible short circuits in the lines
connecting the following components:
- air injector
- fuel injector
- H.V. coil
INJ PJ - 15