Re: seized engine?
The instructions always say that you should be able to turn the small sprocket on the motor by hand with the clutch in. I have yet to see one that this is possible on. Feeding the chain around the sprocket can be tricky as it often gets stuck out of position half way around. All I can suggest is to make sure the clutch is engaged all the way and use a screwdriver to push on the gear with the chain that you are trying to feed around it. if it gets stuck back it up and try again. Also look from below as the chain comes over the top and see if you can use a small screwdriver to keep it from getting hung up. At least this is how I do it.