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CDI Unit
System Inspection
NOTE
•
The COi unit is semi-conductorized component which
in-
cludes
ignition
timing advance, retard system and other
calculating circuits. It may be difficult to check the COi
unit
by itself.
Therefore, testing is done by process of eliminating
other
causes.
Remove
the seat
and
fuel tank (page
2-2).
Disconnect
the
COi
unit
connectors.
In case of the ignition timing is out of specification or poor
or
no
spark at the plug, check
the
items below.
-
Spark plug
-
Connection of all connectors
-
Engine
stop switch
-
Ignition
coil
-
Alternator
excitor coil
-
Pulse generator
If
all are OK, replace the CDI unit and recheck.
Measure the
data
between
the connector
term
inals using
the
following chart.
Item
Terminals
Ignition
primary
coil
Black/Yellow and Green
Pulse generator
Blue/
Yellow and Green/White
Alternator
excitor
coil
White and Blue
Engine
stop
button
Black/
Yellow and Green
Removal/
Installation
Drain the
radiator coolant (page 5-3).
Remove
the seat and
f uel
tank (page
2-2, 2-3).
Remove the two lett radiator
mounting
bolts and disconnect
the
lower radiator
joint
hose.
Swing
the
left radiator
forward.
Disconnect the CDI unit
connectors.
RICIERED
Ignition
System/
Alternator
Standard
(20°C/
68°
F)
0.4-
0 .6
n
-
180-
280
n
40
-
140
!1
I
•
Continuity with
the
stop button pressed
•
No
continuity with the stop button released
14-3
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