Did many clutch mods but today did a mod 3 sheave on my new 2016 Kodiak .,I had replaced the rollers with Grizzly 18G and secondary to epi purple. Coop got me another new sheave and did his magic. Installed yesterday and put about two hours on it today. Totally different machine , plenty of low to stand it up with the new 27 black diamonds and no loss on top end. I am amazed I've run probably 5 different clutch systems on various machines ( this however being my first Yamaha) the high range is perfect for general riding and low is perfect for crawling. Mid range is very snappy compared to stock mainly the lightened rollers but the initial power and top end is the Mod 3 work . I Was sceptical but glad I did the work and took the plunge. Thanks again for all the great posts to read here and thanks again to Coop.