Generator trouble

Hi! 
Someone have some information about this problem as described in the appendix. Do anyone have a description like this for Rotax 912 is generator.

Internal Generator Checks

1. If you have low voltage (battery not charging)

a. Remove yellow wires and check resistance between them

(0.3-0.8 Ohms) If the resistance is infinity or no needle

movement you have a open circuit (a wire is broken)

b. Reinstall yellow wires, run engine at idle and check output

from yellow wires (Should be 18-20 AC volts)

c. Check output from B+ terminal of Regulator. Should be 14

DC volts

2. If the Generator is putting out AC volts but the Regulator is not

putting out more than battery voltage (12V) the Regulator is faulty.

3. If the Generator is not producing AC volts the stator or stator

wiring is faulty

4. Check grounds on Regulator and engine block before ordering

new parts!

5. Check wiring diagram if you fail more than one Regulator! Faulty

Regulators are not common but crossed wires are!