| Battery | Standard specific gravity | 1.25 to 1.29 at 20°C (68°F) | ||
| Standard voltage | 10.275 to 16.25 V at 20°C (68°F) | |||
| Fuse | Standard resistance | Below 1 Ω | ||
| Charging circuit without load | Standard current | 10 A or higher | ||
| Standard voltage | 10.275 to 16.25 V (when engine speed at 2000 rpm) |
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| Charging circuit with load | Standard current | 30 A or higher | ||
| brush holder | Standard exposed length | 9.5 to 11.5 mm (0.374 to 0.453 in.) | ||
| Minimum exposed length | 4.5 mm (0.177 in.) | |||
| Generator rotor | Standard resistance | Between the slip rings | 1.6 to 2.0 Ω at 20°C (68°F) |
| Between the slip ring and rotor core | 10 MΩ or higher | ||
| Standard diameter | 14.2 to 14.8 mm (0.559 to 0.583 in.) | ||
| Minimum diameter | 14.0 mm (0.551 in.) | ||