I had a suzuki GS650 and the owners manual strictly forbid towing the bike. The front end of the drive was lubed by engine oil. I would expect the valk is similar.
that it is...you do not want to tow the Valks without the motor running. Have to pump oil to the little bits in the transmission or it will be screwed up. Best option...if you can't ride it is to put it on a trailer.
Joe