Briggs & Stratton 550 Series
I pulled it out of the shed after not using it all winter. I changed the spark plug and cleaned the carburetor. But it only starts up, and then only for a few seconds, if I hold it upside down for about 20 seconds. I don't suppose this is a good idea but it does work every time, which seems to indicate that it's not a problem with the dynamo. Any other suggestions? Thanks!