I bought my bike about two weeks ago, I have only ridden it six miles so far it is awesome. I have a battery tender wired on the battery and it stays plugged in while in my garage. I have started it up a few times while showing it to my buddies, It seems to crank really slow and coughs back trough the air box. Is my new bike sick already? Is slow cranking normal on this monster of an engine? Do I have to give it gas while cranking to start it? I did a search and couldn't find anything about this.