Hi I have a 1992 honda prelude engine starts first turn runs fine but when switched off after running for a while it will not start again sounds like it is stared of petrol then backfires and stops after about an hour it will start normally again

Replace the Ignition Control Modue (ICM) and coil:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-4.html#post265896