In the March 2002 Motocross Action Mag. on page 118, it shows how to lengthen a 426's clutch arm to give an easier pull. They extended it using some scrap steel and a wirefeed welder. The extension was exactly 5mm. I am going to take my actuator arm to a welder I know and have hime extend it for me, I will let you guys know how much it cost and how much of a difference it made. They said in the article that Team Yamaha also does this trick.