How do you change the timing belt in a 1989 Honda Accord?
Unless you know exactly what you are doing this is a job best left to a professional. The engine in a 1989 Accord is an interference engine. Install the belt incorrectly, start the engine, and you will have severe damage. If you still want to do it, I suggest you go to an auto parts store and purchase a repair manual specific to your car. There you will find instructions on how to replace the timing belt. If you hire someone to do this job, also replace the water pump and drive belts at the same time as the timing belt. This will save you labor costs down the road, as the water pump life expectancy is about the same as the timing belt.