Intermittent fault. Bike won't rev past 6000rpm

[robbo]

Thanks unfazed, I 've spent some time trawling through the forum searching for similar fault postings. I've been jotting down a list of possibilities and the regulator is high on the list. Red98 had a similar issue with his 600, which if I remember correctly spanned 43 pages and 17 months of trials and tribulations before changing out the regulator. As you know it's very alarming when this type of fault happens, and both times it's been whilst overtaking. In the Haynes manual it says that the regulator can be taken to a Yamaha dealership for "testing". Maybe it would be worth sourcing a replacement as a process of elimination. Thanks for your input, much appreciated. :thumbup