Check the brake light bulb !! I know it sounds stupid but had this exact problem on one scoot, cant remember if it was gilera tho. It seems to affect how the start inhibit circuit works !
Good luck Steve
SB
November 2006
Automatic Answer
While you wait for answers, we may have found some information which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix motorcycles.