the motor wouldnt seize. it might be hard to start after a while cause the gas can go bad but other than that it shouldnt. ive havent started my 1986 kawasaki kdx 200 dirtbike in months and i guarantee with some tlc it would start right up
if your going to let it sit put some fuel stabalizer in it. Im in the military and deploy alot so i just put a little in there and it good to go. Come back 6 months later and it starts right up. You can buy this stuff anywhere.