This kit advances the timing 4 degrees and will generally pick up the full throttle power a little bit, but it's biggest benefit is that part throttle power increases. This is the patented Factory Pro Adjusted Ignition rotor. Adjust for best throttle response for your engine combination. Arm Kit Make shifting MUCH quicker and virtually eliminate missed shifts. BTW - fewer missed shifts means longer shift fork and engagement dog life.
Installation requires removal of the engine clutch cover and complete removal of the clutch.
Requires the use of an air impact wrench for the clutch nut. An experienced dyno operator with a decent dyno will be able to show power at part throttle. Look for a 4 Gas EC997 for best test information. Generally, if you feel an unacceptable amount of power loss at high rpm while riding, you would avoid the power loss by retarding the timing in usually 2 degree increments until power picks back up. Some pick up or lose power at different RPM's with more ignition timing lead, but most all have improved power at part throttle settings.