Saad,
Go to the "California Power Systems 1 800 Airwolf" website. Click on the Tech Info tab at top of page, then click on Tech articles. Go to article #58 "troubleshooting the ducati ignition system".
It will give you all the information needed check all the components with your multimeter.
There is also a lot of good info in the other articles for just about anything you need to know for the two cycle Rotax.
Bill.