Sounds like the bike was timed for full advance rather than static/idle. I had to do the same for my GS so that it would run correctly.
But I set my valves according to centered TDC mark, not adjusted for the altered timing.
Others may chime in differently but my bike is happy according to plug readings and performance.
*EDIT* Never mind, AW and HG picked up on the issue better than I did.
Current: 93 R100GS, 03 XR650R
Prior: 73 CB350, 77 R100/7, 83 R100RT, 04 XR650L
I love every motorcycle I've owned and even some that I haven't.
ignatz72 screwed with this post 05-18-2012 at 07:24 PM