A lot of people like seafoam 1/3 to 1/2 can run through but ask on a yamaha board first. Maybe they have something that seafoam eats. No need for a trailer when you move light bikes. They go up into the truck nicely.
Buy a cover and take it to an upolstry shop. $50 later you'll be in business. Better yet buy a corbin, you'll be a happy camper after an hour. I love my corbin even though I hate the look of it.
www.auctionsniper works wonders for bidding when you're not around esp since the first couple are free.