Mower keeps cutting out
Hi. This is our first time owning a gas powered mower and up until now it has seemed fine (used about 3 times). Today we are trying to start it and it has white smoke everytime it starts and it runs for only a couple of seconds and then it cuts out. My son says the white smoke has been present each time he and my husband have started it before but that it has run perfectly other than that. We have the right oil in it, we have checked that there is no grass jamming up the blade and as the grass is fairly long (almost 2 weeks) i have had my son put it on it's highest cutting height, but i'm sure this is not the issue as it still cuts out standing still on the patch of grass that is already short. Can anyone help? Thanks so much.