| Diagram | Fig. 28 — ELECTRICAL EQUIPMENT (PART 2) · ref 31 |
| Listed in parts books | 1971–1972 |
Zener diode (ZD 715)
A ZD715 zener diode for the charging circuit, regulating voltage from the alternator.
This is a zener diode, listed in the parts books under the ZD715 designation. It shows up in the ELECTRICAL EQUIPMENT figure for machines across the 1971 to 1972 catalog years. A zener diode of this type sits in the charging circuit and works as a voltage regulator, bleeding off excess current from the alternator so the system doesn't overcharge the battery once the electrical load is low.
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On these bikes the zener is typically bolted to a heat sink somewhere out in the airflow, since it dumps the excess current as heat and needs to stay cool to keep doing its job. If you're chasing a charging problem - battery cooking, bulbs blowing, or the opposite, a battery that won't stay charged - the zener diode is one of the usual suspects to check alongside the rectifier and the alternator itself.
The catalog record here is brief and doesn't tie this part to one specific model, so give the shop a call and we'll confirm fitment before you order.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
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