Generator Inspection: Rotor

Using ohmmeter, check for continuity between slip rings of rotor. If there is no continuity, replace rotor.
Standard resistance between clip rings of rotor

For 105A type: 1.6 - 2.0 ohm at 20 °C (68 °)

For 80A type: About 2.9 ohm

Fig 1: Checking Continuity Between Slip Rings Of Rotor
Courtesy of SUZUKI OF AMERICA CORP.
Using ohmmeter, check that there is no continuity between slip ring and rotor. If there is continuity, replace rotor.

Fig 2: Checking Continuity Between Slip Ring And Rotor
Courtesy of SUZUKI OF AMERICA CORP.
Check slip rings for roughness or scoring. If rough or scored, replace rotor.
Using a vernier caliper, measure the slip ring diameter.

If the diameter is less than minimum, replace the rotor.

Diameter of slip ring

Standard: 14.2 - 14.4 mm (0.557 - 0.567 in.)

Minimum: 12.8 mm (0.504 in.)

Fig 3: Measuring Slip Ring Diameter

Courtesy of SUZUKI OF AMERICA CORP.