Gilera Runner 125 Manual page 29

engine. As the last operation, remove the spark plug while turning on the starter motor
in order to expel any excess fuel; then refit the spark plug and repeat the process from
point 1.
2. If the engine overheats.Follow the same sequence of procedures, keeping the
throttle slightly open. If the vehicle does not start when the above methods have been
followed, turn to an Authorised Dealer or Service Centre.
3. Faulty battery and start-up with auxiliary battery
If the battery is dead it is possible to start the engine by means of a connection to
another battery, with cables capable of accepting high current and with clamps at the
ends. If the auxiliary battery is installed in another scooter, do not allow the two scoot-
ers to touch and position them both on the centre stand (if the other scooter has one).
Proceed as follows:
a) Switch off all services and users, start up the vehicle with the auxiliary battery and
make the engine run slightly above idle to ensure deep battery charge; then turn off
the engine.
b) Turn off everything and turn the vehicle's key switch to «OFF»,
c) Connect the positive terminal (+) of the discharged battery to the positive terminal
(+) of the auxiliary battery, and the negative terminal (-) of the discharged battery to
the negative terminal (-) of the auxiliary battery.
d) Try to start the scooter by alternating 5 seconds of turning the starter motor with 5
seconds of pause. If the motor does not start after 20" of using the start-up system,
do not continue with the attempt, since the scooter might not start due to some other
problem.
e) Once the engine has started, keep it running slightly above idle and disconnect the
cable (one cable at a time from both battery terminals) following the reverse mounting
procedure: first the negative terminal (-) and then the positive one (+). As soon as you
can, control the electrolyte level (in the case of unsealed batteries) and top up with
distilled water, if necessary. If the fault that causes the battery to discharge is unknown,
contact an Authorised Service Centre to check the vehicle's electrical system.
29