25-04-13, 10:38 AM
Just to add my own experience: Collected 03 Foxeye 2 wks ago-it came with a new chain fitted but, although rear sprocket is good, when I managed to get the front cover off found I had the 9mm nut & a useless lockwasher,holding on a very worn/hooked aftermarket sprocket. Yamaha dealer supplied the modified 12mm nut & lockwasher for £2-44 & I bought an official Yamaha sprocket for £29. At least the old one was tight-had to put an extension pipe on the socket handle to get it to loosen. Didn't bother replacing pointless paper gasket-cleaned loads of crap(10 years worth?) from the cover and engine case, relubed clutch thrust assy & hey presto-nice smooth clutch action and transmission free of jerks/snatching. Torqued the nut to 75nm. Theres a world of difference between the proper Yamaha sprocket with built in plastic/rubber cushioning & the cheap item now winging its way back to Chinese steelworks courtesy of our local scrap man :lol