Some owners of the 2007 Summit models fitted with the 800R engine package have experienced a variation in operating RPM and poor backshifting. It has been determined that some of the clutches are binding, both secondary and primary.
In the secondary, a small number of cams could have an outer diameter larger than specification, leading to binding and poor shifting characteristics. In these cases, replacement of the cam is suggesting to eliminate the binding.
In the TRA primary, it has been found that some of the rollers are seizing due to the increased temperatures experienced in some riding conditions. A small number of spider sliders have also been found to be larger than specification, requiring replacement. Dealers that encounter units that exhibit a fluctuation in operating RPM will inspect the primary for freedom of movement of the spider and the rollers. Rollers should be replaced if seized, sliders replaced if binding, and a new spring installed that is less sensitive to friction changes due to temperature. It is important for the rollers and spider to move freely, or shifting characteristics of the TRA will be compromised.