did it today. it took three hours. theres a lot to be said for having done a job before. and whereas I spent at least an hour cleaning the carbs/floatbowls etc the first time that was unnecessary this time. and the wiring tidy up saved me at least half an hour in itself
So. I hadnt drilled a few holes enough, the magnifying glass thingy I bought was useless, but the +3.5 cheapo reading glasses I got from poundland for a quid did the job, along with being far more confident this time. I checked the float heights with a Vernier, they were all good. re-fitting was much easier this time, mostly because I bolted the airbox as far back as it would go, then forced the back up with a rag to give me a decent bit of room, and manouvered the carbs in holdin them as high as they would go. that made all the difference in the world, along with a bit of gentle heat and some grease to make the inlet stubs and airbox connectors all go tickety boo.
whether I imagined it being a little iffy just off idle or not I don't know, but either way, its perfect now.
what an utterly, utterly brilliant bike these fazer thous are..