![[#8] Rear Pulley Oil Seal Yamaha OEM (BWS 2002-2011) GTA The springs delivered with the](https://cdn.shopify.com/s/files/1/0518/6057/0291/files/8_Rear_Pulley_Oil_Seal-_Joint_d_tanch_it_Correcteur_Couple_Bws_YW50.png?v=1770242722)
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[#8] Rear Pulley Oil Seal Yamaha OEM (BWS 2002 2011) GTA The springs delivered with the The springs delivered with the clutch are a little stiffer than the original ones your belt is very often pinched between the variator cheek and the ventilated pulley and this causes you to lose performance