Engine starts and runs normally.Voltage output less than 30v ac. Rechecked all connections and found ground of output connection loose in controller along with terminal block ground from both 120v and 240v ground lugs.I need wiring diagram for Kohler generator serial#265617,5080A 120v/240v generator.There were 2 condensers/capacitors attached to two slipring brushes.What are the specs for these? What is their purpose?Do they influence ac output? How do I test Selinium Rectifier? How do I test Transformer?Wirewound resistor on bell end appears intact with voltage adjuster in good shape.