[mr0077]

About the original post, I wish I had seen this earlier, I just did it on #598. I had changed the battery several times with no problem by removing the right valve cover, but the last time it just would not come out (I didn't try turning it upside down). I looked at it and thought for a second, and realized that the outer end of one of the rocker arms at a critical location was up, so I put it in fourth gear and rolled it backwards about two feet until the tip of the rocker moved down, rotated the battery sideways and pulled it out, no problem.
Oh well, lesson learned here.