The most popular reason is that you don't have a good contact area between wires and the battery contacts. Also you might need to clean battery wire connectors from rust and other oxides. You might want to check that the new battery is still charged.
Check spark plug wires, and voltage on the distrubutor.
Possible battery, starter or connection problem.
How to install a battery?
Make sure connections are on tight.
articat atv366 wont start makes a cliking noise has good battery
Check you battery
Check the idle sensor if you have one.
1992 buick road master after you put a new battery it crank but wont start what is the problem
Your car wont start. lol
Weak battery
You need a new battery.
battery is low. get a boost or charge the battery.