Electrics
- Battery is 12 V, 9 Ah. Regulated charge is 13.5–15 V.
- Stator resistance differs between 122 and 123.
- Headlight bulbs change in 1999.
RS125 · 1993–2006
Electrics
12 volt system, electric start, three-phase alternator with a combined regulator and rectifier. Bulb wattages are split by the years the manual prints.
| Battery | 12 V, 9 Ah |
|---|---|
| Specific gravity, fully charged | 1.26 at 20°C |
| Charge | 0.9 A for 10 hours |
| Unregulated alternator output | Type 122: 53 V AC at 6,000 rpm. Type 123: Not published. |
| Regulated output | 13.5–15.0 V at 6,000 rpm |
| Stator resistance | Type 122: 0.1–1.0 Ω. Type 123: 0.2–0.4 Ω. |
| Fuses | Lighting and instruments 15 A and/or 20 A. Ignition 7.5 A. |
| Starter motor bolts | 10 Nm in chapter 2B, 12 Nm in chapter 9. See torque. |
RAVE control-unit test
DC, measured green to blue: 11.25–13.25 V. AC, measured yellow to blue: 7.5–9.5 V. That is a test pair, not a wiring diagram. Cable free play is 0.5 mm, on the fluids page.
Bulbs
| Lamp | 1993–1998 | 1999 on |
|---|---|---|
| Headlight | 55/55 W, high and low in one bulb | High beam 55 W, low beam 55 W |
| Sidelight | 5 W | 5 W |
| Brake and tail | 21/5 W | 21/5 W |
| Turn signals | 10 W | 10 W |
| Speedometer | 2 W | 2 W |
| Tachometer | 2 W | 2 W |
| Temperature gauge | 1.2 W | 1.2 W |
| Warning lamps | 1.7 W or 2.0 W | 1.7 W or 2.0 W. Later bikes use an LED for the oil-level warning. |
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Sources
Research brief dated 24 October 2026. Where this page says “the brief”, that is the sourced master plan behind the first edition.