How to replace the timing belt of Honda Ballade?

Hi.I have a 1986 Honda ballade popup light 150 carb model.I want to know if this engin bents valves when the timing belt snaps also what the firing order is.I have it on 1-3-4-2.Last but not least how to align the cam abd crank so I can replace the snapped belt.Thanx in advanceHow to replace the timing belt of Honda Ballade?visit http://www.carsurvey.org for answers