1972 Scout

I have a 1972 Scout II that runs great. However, if I turn the engine off and then want to start it again within 5-10 minutes it won’t start. After twenty minutes it’s no problem. Any thoughts on what’s causing this? Thank you.

You might need to wrap the fuel line running from the fuel pump to the carb. After shut down the heat from the motor warms the engine compartment and without air circulating it gets very got at the top of the motor where the carb sits. You are getting vapor lock, the gas changes from a liquid to a vapor in the fuel line. Getting, or keeping, the fuel line cool is the key. There should be an insulating wrap you can buy at an auto parts store that will do the trick. This was a common problem in cars prior to fuel injection.