FZS 600 '99 Issues, ideas?

[BBROWN1664]

- when cold starting on full choke the bike will cut out sometimes, however starting is not overly difficult for now (mostly two attempts).

Most FZS600's barely need half choke, especially in the summer as they run slightly rich usually

- when cold starting ive noticed a slight metalic sound from engine when throttle is opened, seems fine and not noisy upon idle however the bike doesn't sound 100% roaring to go when its cold.

Difficult to say without hearing the issue - maybe post a video on here - but it could be a bit of chain rattle or it could just be the bike saying, take it easy for a few mins while i warm up a bit

- increased fuel consumption (but this has been over a long period), i'm getting 104-115 miles before the bikes indicator is showing in the bottom section (i appreciate its hard to gauge as it depends how much i fill up, never tracked mpg)

104-115 miles could be anything - how many litres do you add when it gets to this point? Shoul dbe about 10 which means you are barely using 2/3 or the tank. These bikes typically do about 160 before the light comes on (ignore the gauge)

- slight loss of power, stronger power surges in a certain rev range; however still reaches 60-70mph.

Now we are getting there - You have said its been serviced fairly recently but when were the carbs last balanced and TPS reset? Have you checked the valve clearances?