neddie Posted October 14, 2009 Share Posted October 14, 2009 Hi I have bought my first Yamaha after a long spell with Kawasaki. I have a YZF1000R Thunderace 1999 It has just developed a strange noise/squeak. When idling it's fine but as soon as you rev it squeaks for a second or two and then goes away but it does it everytime you rev fromm idle. It sounds like it is coming from the exhaust. Has anyone else heard of this? Thanks Link to comment Share on other sites More sharing options...
YPVS TONE Posted October 15, 2009 Share Posted October 15, 2009 Sounds like the EXUP valve in the exhaust needs stripping out and greasing with high temperature grease. Tony. Link to comment Share on other sites More sharing options...
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