RR & links for prep may show backpack build for dog: http://advrider.com/forums/showthread.php?t=730995
If his health and safety are truly a concern, leave him at home. I doubt there is anyway you can really protect him on a moto.
My 14 pound mutt terrier sits in a baby carrier with added hole for her tail. Leash tied firmly to the carrier. She actually sits in my lap and rests on the fuel tank. Only short rides so far, getting her into it is a bit of a production...
I learn new stuff every day, cuz I had no idea there were dedicated motorcycle pet carriers available... http://beastriders.com/products/beastriders/
My ex-GF with her dog Max Fritz! She was hit on the bike with the dog carrier on it. Fortunately the dog was not on the bike, as the carrier was badly damaged. Jim
After a bit of a search the best I can find is this: http://www.etsy.com/listing/1216596...gn=pets_high&gclid=CO3Ngv-AprgCFYmk4AodVmEAEQ Jim