Gilera Runner RST Purejet, Service Manual, Page: 56 / 235

- Use a multimeter to check the continuity of the
positive and negative power supply cable.
- Make sure the connections are good.
If no faults are found, replace the starter.
Specific tooling
020331Y Digital multimeter
Dynamic tests
Check the battery voltage after it has not been
used for a few hours.
Voltage < or equal to 12.5 V.
Check the density of the electrolyte of each ele-
ment.
Bé = 30 ÷ 32
Specific weight: 1.25 ÷ 1.26
Make sure the negative terminals (battery nega-
tive and starter negative) are correctly connected
to each other and to the frame.
- Connect the diagnostic tester.
- Connect an ammeter induction clamp to the neg-
ative power supply cable of the starter.
- Disconnect the fuel injection connector.
- Turn to «ON».
- Select the «PARAMETERS» function.
- Start the engine (making sure the vehicle cannot
move) long enough to measure the rpm and starter
absorption.
- Absorption at drag rpm: from 15 to 25A.
- Drag rpm: from 500 to 550 rpm
N.B.
THE VALUE OF DECLARED RPM IS THAT IN-
DICATED BY THE DIAGNOSTIC TESTER
Specific tooling
020460Y Scooter diagnosis and tester
Electrical system
Runner RST Purejet
ELE SYS - 12