98 yamaha blaster won't start
 

my blaster started fine and ran good all day. my dad took off the air filter cause it was completely gone. well i rode it all day ,even went a little muddin, with the air filter off. at the end of the day the damn thing wouldnt start. i took of the carberator and took it apart and cleaned the whole thing with carb cleaner and even cleaned the jet. i took off the air intake and cleaned all that. i go to kick start it and it won't do anything. if anyone has any idea what it might be please let me know.

thanks,

jd