1989 Honda FL400R Pilot Service Manual, Page 230Get this manual

1989 Honda FL400R Pilot Service Manual, Page 230

BATTERYCHARGING SYSTEM Provided that all components of the charging system are normal and there are no loose connections at the regulator rectifier connector, inspect the regulatorrectifier unit by measuring the resistance between the terminalsUnit:kn

The resistance values will be incorrect if the probes touch your fingers
20-100 0.5-10