Finished putting the RG back together, exhausts on, rebuilt a nylon washer for my gear lever to make it a bit less wobbley! Only had 700cc of gearbox oil, and I still need to add water.
I purchased a ProFactory jet kit for the FZR as I am told that it's impossible to adjust the carbs with pod filters, the kit comes with 2 sizes of main jets and bigger (35) pilot jets and most importantly needles with a different profile. Put them on 2nd clip position from the bottom and added the pilot jets. The mains seem very big so will wait until I've tried it like that.