moobycore, as Fluffy said, need more details.
1. Does the engine turn (crank over)?
2. Turn on your headlights, are they bright? (sometimes a weak battery can turn an engine over but not be able to start it, I know its new but sometimes you might get a duff battery)
3. If you have spark, the engine is turning. Then is your spark strong? Do you have fuel going in?
If you have a cranking engine, you have spark at the spark plugs and its strong then there's only timing and fuel delivery left for a basic non-starting problem. Let us know.