The standard 163 mm alternator can be directly driven by many engines from 100 cc to 275 cc. It is rated for 1000 watts at low cruise RPM. It can also be belt driven by large engines.
Wattage range: 1400 to 5500 Watts
Engine size range: 150 cc to 250 cc
Voltage: 10.1 Vac/1000 RPM
Single/three phase: Single
Engine rotation: Universal
Temperature Range: Stator: 160C, Rotar: 66C