1999 honda crv not firing after head got replaced?

We have a 1999 honda crv that we just put a head on it and it won't fire now it turns over but no spark… Any ideas?

Look around the area of the head for a ground cluster you might have forgotten to reattach. Likely something like that. Look at the wiring and connectors for a disconnection.

Hi when is this fact going to sink kids. You can't mess about like grandfather did changing engine parts as it is no longer a car without a computer built in. It has certain things which need to be addressed in the engine management system. So time to get a grip here. The timing and valve issues all are part of a HONDA engine. So time to be getting lots of money togther and let a HONDA mechanic do it properly.

If it has spark plugs they could be in the wrong firing order.