Hello I have a Piaggio Porter with petrol 993cc Diahtsu Engine year of manufacture 1994, and I have this problem. At first when starting it works fine, switch on and off no problem, after using it(driving it) for about 1 hour the engine symbol on the dashboard panel switch on then after few minutes the engine switches off by itself. When try to re starting again it would not start but the engine symbol remains on. After let it for 1 1/2 hour it starts perferctly. Any help please.