Yes, it helps. I removed the right plastic cover, removed the bolts that hold the coolant reservoir, and I got easy access to the pre-load adjuster. They should revise the manual.When I adjusted mine, all I did was remove the right side plastic cover and the coolant overflow bottle. From there I had a friend hold the back tire off the ground balancing on the kickstand while I adjusted it with the tool from under the seat.
Hope this helps!