Why is the backshifting so soft on this machine?
Last weekend I finally got time to tear into my clutch again to try to solve the age old question "Why am I not seeing gains by clocking the spring and why is the backshifting so soft on this machine?" I had tried and tried different settings on the clutch, different belts, lubing certain parts, replacing parts and about everything else I could think of. Finally I was down to just the spring that had not been replaced but it looked fine. I ordered it anyway and to my surprise the new spring looked MUCH different and even better…..IT WORKED 100x BETTER!!! Below you will see pictures of the difference in the springs. To clarify the old spring still worked, looked good and was OK, but just ok. My symptoms were it was a soft backshift (when rolling at 15-20mph and you stood on the gas it lugged just a bit and it didnt jump out of the hole) and no matter what I did I didnt feel any real change when clocking the spring. Also when i messed with the clutch spring at all I lost top end speed (71mph originally down to 65ish). Now with JUST changing the spring and set to B2 I am back at 71mph! My hunch on this is that some percentage of the springs are flawed and either didnt temper right or are a bad metal compound and loose their springyness (not a real word but you get the idea). So either over time or when you coil it harder and release it you loose the firm backshift and extra pressure you need from the spring. Cheap enough part, easy enough to replace. If you are seeing these problems its WELL worth doing.
FYI the old spring is longer and on the left. New spring is on the right