stuttering fzs 600

[red98]

a day of thinking for me i think.......ive made it worse  :\  so i must be close .........must be carbs  .
one thing i did`nt check after adjusting the shims and putting the head back on was the valve clearences to see if they are correct    should be and only adjusted by 0.05mm .......probs check though .
might check ebay for good carbs that i can see in action on the bike