The sprocket nut issue affected all the FZS600 produced, right up to the change of motor for the FZ6 in mid-2003 when they had to switch to fuel injection+cat.Might be worth whipping the sprocket cover off any FZS600 you go to look at just to check the condition... but even if it's been bodged and the nut's welded on it's not that big a deal to grind the weld away at c&s replacement time, I ran mine for years like that.
Hello. You may not know this but foc-u changed boards a few years ago. All the old posts are at http://fazerowners.yuku.com/There's a sprocket nut thread in its Archive board (near the bottom).Actually, you could look through the archive to see if you find any of your old posts and therefore your username!
Nice machine, Well wear, keep a spare regulator/rectifier handy. What mileage is on it?Valve clearances are a very expensive thing to have done, especially if not within the adjustment range and must be checked every 16000 miles. Having the valve clearances checked and proof of same actually increases the value of them.