Yamaha part number from as per Fowlers Parts is 4XV-82370-01 not sure if that's £93.68 for 1 or all 4 though :eek
They look like rocking horse poo to get hold of reasonably so have a look in the For Sale & Wanted to see if anyone is breaking a bike, might be worthwhile sending b1k3rdude a PM or posting on his For Sale thread to see if he has any :pokefun
Top Tip from Mike (Falcon269) if you're having issues in this area trim the leads a little where the caps screw in and refit as the ends can go brittle and split adversley affecting the connection through to the plugs.
They look like rocking horse poo to get hold of reasonably so have a look in the For Sale & Wanted to see if anyone is breaking a bike, might be worthwhile sending b1k3rdude a PM or posting on his For Sale thread to see if he has any :pokefun
Top Tip from Mike (Falcon269) if you're having issues in this area trim the leads a little where the caps screw in and refit as the ends can go brittle and split adversley affecting the connection through to the plugs.