Yes Jeff this is the yellow 600, fuel is fresh, I put 4 liters of fuel through it over Easter before it stopped. Same carby and I did think about changing the needle for one of the ones I filed down the other night. So far I have fitted 4 of those and all 4 worked straight up. It is a waiting game now to see if they still work in a couple of months. Another interesting thing is the reject needles I had were all in one container, ones that flooded , fuel out the primer cap and the others that just would not start. Of the 4 I have fitted none have leaked so I am still not sure where I am at. In hindsight I probably should have put them in different containers but at the time I was in no mood to think along those lines, I just wanted to fix them and get them out of my hair.
