I agree that the BME 100/102 is a great engine. It weighs a tiny bit less than the ZDZ 80 and creates a little more power. The best thing is that it idles soooooo smoooooooth, and sounds great!

I think the new 105 weighs 3 oz more than my 102.

The ZDZs are a better dollar value, so if you are looking for a single, they are a great deal. I'm not much for cast crankcases though, although I have not heard bad things about them.

To each his own.

Jim!