Hi, I have a Vespa Bravo moped that needs a new sparkplug and I do not have the original sparkplug so I do not know the sparkplug number. Does any one here know what the right sparkplug number and gap number should be. Also I am having problems geting it to run right it will only run for about 30-45 secs than it dies and will not start again but when the engine cools down it will start again could this be the sparkplug? And, I am also have problems geting it to idle and to rev up and it seems like it bogs down when it is reved up could this also be the sparkplug.? And does any one here know where I can buy parts from a Vespa Bravo moped?