Hey guys, I just bought my first 78. The bike has been sitting for many years and I tried to see if I could get it going with no luck. I tried to boost it with my van and I noticed to turns over pretty slow. What would cause that? I also took the valve cover off and noticed it was bone dry. Absolutely no oil was making its way to the head. The oil was full and clean. I'm stumped. Where do I start? Is this going to need a rebuild?