I have a Polaris 250 trailblazer 2006 hard to start cold and won't start hot

SOURCE: I have,a polaris trailblazer 250. I had to pull start it because it seemed the battery was bad. Bought and installed a new battery and,still won't start. Any ideas....

If it will not spin over, check for battery voltage to the starter.If there is 12 volt to the battery connection on the starter while the start button is being pressed then the starter has gone bad. If there is not any voltage to the starter while pressing the start button, check for blown fuses and the starter solenoid,usually under the seat near the battery, and starter relay,also near the battery.

SOURCE: can i run premium gas in my 2001 polaris trailblazer 250 2 stroke?

As long as you mix it correctly yes