Question about 2004 Suzuki DR-Z 400 E
The CDI box is the Capacitor Discharge Ignition system for creating spark at the spark plug and does not charge the battery. When you say it is not charging, are you able to measure the voltage across the battery with the engine running at 2500 rpm. If it is charging it will run to at least 14.5 volts. The headlamp should also be nice and bright, and a noticeable increase in brightness when revs are lifted from idle.
If it does not, then you have a problem with the bikes alternator, or the regulator that controls the charge rate. Also check the fuses for failures, and general tightness of the battery connections and wiring about the battery and frame earth. If it appears to be charging, but the batt always seems to not be taking a charge and flat, then the battery itself may be the problem. They dont last forever and can often be the source of "no charging" issues.
Let me know how many volts you have at the batt terminals with the engine running.
Posted on Jul 14, 2009
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Posted on Jan 02, 2017
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