Stuttering FZS600 (sorry)

[His Dudeness]

So I understand that this won't be foc-u's first rodeo with stuttering FZS600s...

I've seen a lot of threads and I'd like a list of possible causes and solutions. I've trawled the threads and found loads of stuff but if I were to try it all I would be here for a year (I only ride bikes, and this is my only functional bike right now so I don't have a car to fall back on)

Standard issue, works fine with feathering the throttle but as soon as I try to give it full beans I get the dreaded splutter until higher revs and then it bursts into life suddenly.

I wonder if its something as simple as it being 1-2 degrees outside and my journey to work is only 2 miles?

Thanks in advance.

I had those same symptoms with a bike and it was running rich. I'd pop out the plugs and see if they are very black. If they are then like Jules-c said the air filter is the most likely culprit.