31-01-14, 12:42 AM
When I did mine I got OEM ones, quite expensive I guess but much more likely to last a very long time unlike the pattern fork seals I bought for a fiver that lasted a handful of miles. The oem ones that were on there weren't actually that worn but I just did it whilst everything was exposed to save possible future hassle. Can be bought here, numbers 4 and 6.
http://www.yamahamotorcyclespares.co.uk/...fork?uid=0
http://www.yamahamotorcyclespares.co.uk/...fork?uid=0