I have a kippor 6 kva inverter gennie which runs fine but wont produce any 240v power the red light is on , when you switch the fast idel switch on it wont pick up in engine revs , it is the same if I swith the gennie off and restart it , any ideas thanks Peter.

Hi and welcome to FixYa, I am Kelly.

The Service manual is here:
http://www.generatoremporium.com/pdf/IG6000-service.pdf

Since you stated that you had no 240V output... Perform the alternator winding tests para 2 - 6 on page 12 of the above link. Hopefully this test passes! Do this first.

This is straight out of the service manual: (pdf page 16)
b. The engine speed does not increase when smart throttle is on and load is increased.
Check the AC output
?abnormal
Perform the generator troubleshooting flowing the instruction of "No or Low AC output


There are more troubleshooting steps after the above. The usual suspects are the stepping motor and the smart throttle switch.
The stepping motor resistance checks are on page 27

Also make sure to perform the diode checks on 30 and 31.... (Voltage regulation and charging)

What they do not tell you is that an inverter generator uses a capacitor as part of the voltage regulation and a bad capacitor or.... hot terminals on the capacitor wires where it routes to the stator can stop all voltage output. Often the signs of a failed capacitor are... what appears to be candle wax directly under it or... the capacitor(s) are swollen in the terminal area.

You have everything you need to determine what the problem is by using the manual. If you have more questions at a later time ask away. I will gladly help you.

Thanks for choosing FixYa,
Kelly