I put this clutch on my Yamaha G16 after I got very tired of pushing the weights back down on the OE clutch when they would lock up. Wow, this new clutch (doesn't appear to have weights) is so much smoother at startup and initial movement its just awesome. The new clutch has only been installed 2 weeks so I cant comment on durability yet and I see some negative durability reviews. I will update as needed. I bought the clutch puller tool with the clutch and on my older Yamaha the old clutch released from the engine crankshaft very easily. I did use anti seize on the puller threads to help. The replacement was really very easy.