I know I am taking a shot in the dark here, but I purchased a 600 V-Max last year and need some help making it run. The sled has Reichard Twin Pipes on it. It ran well with Larger CC sleds, but lost RPM on the big end. Does anyone have anything that they know of to make this thing hold the RPM? I purchased this sled to ride in Ohio, and know absolutely nothing about Yamaha's. Thanks for any help you can offer!