Wow!
It sounds like you have a twin of my machine! I'm missing the engine shroud, gas tank, and pull starter as well!... oh, I'm missing the key too!
Thank you very much for the advice. I'm going to find the nearest Ariens dealer and see if I can at least get those parts I'm missing. If not, I'll just replace the motor.
And thank you for letting me know the owner's manual for my machine was on Arien's website! I was at their website - but they don't advertise that too well - so was glad you told me, since I did find the owner's manual (that I almost paid $10 on eBay for!).
Thanks again!
Steve