Hey, I just bought the OFNA ULTRA LX PRO .26. And when I try to start it the pull start is real hard to pull. I can barley pull it. But when I take out the Glow Plug I can pull it with no problem. I can't pull it when i have the glow plug in it. I did get it started twice , i dont know how i did, but it shuts off to quick before I can ajust anything. But WHy is it so hard to start it. The pull start dont want to move!!! please help