Can a Grizzly (660) be towed ?

I am a newby, so please forgive me if I am in the wrong section, and please direct me to where I should be.

Are there any cautions if I, or one of my Yamaha Ultramatic riding buddies, need to be towed a few miles? Can they be towed slowly (say 20 MPH) with a dead stick engine without doing any damage?

Thanks!