H2/H1D  CDI Test Procedure by Dayle Edwards (Starfire)

Here is the procedure to test H1D/H2 stock CDI Units. If anything seems unclear, please get back to me.

RECTIFIER UNIT
1 Remove both Rectifier Unit, and battery from bike
2 On the bench , crocodile clip leads are useful here, connect as follows.
3 Connect the BLACK/WHITE wire to one lead of a low wattage 12 volt test light.
4 Connect the other test light lead to Battery - (negative)
5 Touch the GREEN wire to Battery + (positive)
6 The test lamp should light
7 Touch the BLUE wire to Battery + (positive)
8 The test lamp should light
9 Touch the BLACK wire to Battery + (positive)
10 The test lamp should light.
11 Touch the WHITE wire to Battery + (positive)
12 The test lamp should light.
If any of the above tests result in the test lamp not lighting, one or more rectifier diodes are open, the unit will need replacing. A work around is available, contact me.

13 Remove the lead of the test light from Battery - (negative) and connect to Battery + (positive)
14 Repeat steps 5 ,7, 9 and 11 above, except this time connect each wire in turn to the negative battery terminal.
15 If the test lamp again lights up, one or more of the rectifier diodes are shorted, the unit will need replacing.
16 Touch each of the LIGHT GREEN wires in turn to Battery - (negative)
17 The test lamp should light on each occasion. If not, one or more of the isolation diodes are open, unit will need replacing. A work around is available, contact me.
18 Now change the test lamp wire from Battery + (positive) to Battery - (negative)
19 Touch each LIGHT GREEN wire in turn to Battery + (positive)
20 The test lamp should remain off, if not, then one or more isolation diodes are shorted, unit needs replacing. A work around is available ... contact me.


CDI UNIT
1 Connect one lead of a 12 volt low wattage test lamp to Battery + (positive)
2 Connect the other test lamp lead to LIGHT GREEN
3 Connect BLACK wire to Battery - (negative)
4 If test lamp glows, The SCR or snubber network is shorted, unit needs replacing.
5 Touch the RED wire to Battery - (negative)
6 If test lamp glows, discharge capacitor has shorted, unit needs replacing. A simple remedy may be available, contact me.
7 Touch the WHITE wire to LIGHT GREEN
8 Test lamp should come on, and stay on when WHITE wire is removed
9 If not, SCR is open, unit needs replacing