05 Honda Rancher 350 won't crank
 

Hey Guys,
I'm having problems cranking my 2005 Honda Rancher 350. The engine will turn over but it will not crank. I have recently replaced my carburetor and I am wondering if a carburetor can be so out of tune, it will cause the bike not to start? I have also changed my spark plug within the last week. The last time the bike has been rode has been 6 months ago. Can there be another problem causing my four wheeler to turnover but not crank?
Thanks in advance guys!
P.S I'm new here and if this is not allowed please send me in the right direction.