I'm looking forward to hear from people who's had direct experiences, but in general I'd be more than skeptical towards someone significantly older than me, with no technical skills, asking to "partner" in a startup project. Chances are that he is somehow using your technical baggage in order to achieve his personal goals, with no real interest in creating a true partnership and using your status of so-called 'cofounder' as an expedient to get the job done almost for free. It might not be your case, but I'd stay with the eyes wide open anyway.