The stock weights can easily be off by +/- 0.5 grams or so. There was more than 1 gram difference between the lightest and heaviest in the last set of arctic cat weights that I checked. Last time I clutched one of these sleds I blueprinted all the weights: took 70 gram factory weights that were in fact anywhere from 69.5 to 70.6 and made them all 69.5. If these clutches are balanced with the inconsistant factory weights, wouldn't it unbalance the clutch when I blueprint the weights?
I am worried about a 2010 m-8, but I posted here because the question would apply to any weighted ramp clutch. I think factory polaris weights are inconsistent as well.