88
12/04
SPIDER MAX 500
B
14. H.T. COIL
Sch. 8
Parameters
Immobilizer
Errors
Delete errors
Active diagnostics
CO calibration
Main 5/8
Fuel pump
H.T. coil
Stepper motor
Rev. counter
Injector
Fan
Diagnosis 2/6
Connect the diagnostic multimeter.
Select the menu from the ”ACTIVE
DIAGNOSTICS” function. Start the
H.T. coil testing with the key switch
on the “ON” position, the emergency
switch on “RUN” and the side stand
lifted.
Wait for the multimeter response.
Select the menu from the ”ERRORS” function.
Check for current or stored errors concerning
the H.T. coil.
TEST FAILED
TEST FAILED
REPEAT THE TEST
TEST ENDED WITH SUCCESS
Central unit ground
CENTRAL UNIT
+ 12 V Battery
Fuel level indicator
+ pump
Fuel injector
H
.T
. coil
12V key switch, stand
emergency switch,
immobilizer from 5A fuse
+ 12V battery
from 3A fuse
red
Keylock
- Magnetisation time
The coil magnetisation time is controlled by the central unit.
The ignition power is increased during the engine start-up.
The injection system recognise the 4-stroke cycle and thus the
ignition is controlled only during the compression phase.
In order to check the ignition circuit, proceed as follows:
The integrated ignition system with injection is of high efficiency
inductive type. The central unit controls two important parameters:
- Spark advance
It is optimised according to: the engine rpm, the engine load, the
room temperature and pressure.
With the engine at idling speed the spark advance is optimised in
order to make the engine speed stable at 1450 ± 50 Rpm/1’.
