My 05 has heaps of chain slap noise, especially low to mid speed. I gather from other postings that it's a common trait of the WRs but Yamaha have sort of fixed it in the 05 by sticking tape under the chain guide. I set the chain as per manual which seems to be a touch loose to me and the bike has done it from new. Anyone else have the same problem and if so have you done any mods to correct it? Besides getting a noisier exhaust that is.