I always used & had good luck with Chilton manuals. I don't know if they're still available! I used to get them mostly at automotive stores.
P.S. Just my $.02. I'm hoping this will help someone! The Chilton manual (at least on Triumphs) was almost identical to the service manual , for a HELL of a lot less $.
Irish
P.S. The front portion of my ride is a 2006 Sportster 1200. I bought a service manual for it on Amazon. It is a Chilton!