Regal V6-231 3.8L VIN L SFI (1990)
Starter Motor: Testing and Inspection
Free Speed Test - Delco-Remy Starters
Fig. 3 Starter Free Speed Test Connections
With the circuit connected as shown in Fig. 3, use a tachometer to measure armature revolutions per minute. Failure of the motor to perform to
specifications may be due to tight or dry bearings, or high resistance connections.