Newbie mistake. I had the screw/nut attaching the throttle cable to the handle bars too tight. After putting everything back together, I took the bike out for a quick spin. It shifted though gears much better with the new cable. Absolutely worth the replacement. I ended up buying a shorter versing from
http://www.olypen.com/retro/ I was a little worried looking at the site, but great customer service.
The only negative affect of replacing the cable is that now my foot break seems too loose. I have to press much further down then I previously did. Perhaps this can be easily adjusted? I'll look though post tomorrow...
