Status update: * Emulsion tubes apparently not going anywhere... * Jets still blocked even after soaking, next going to try boiling them in lemon juice * Fuel tank full of vinegar waiting to be siphoned out/washed/filled with petrol * Removed the front brake caliper because it was sticking. By sticking I mean I removed all the mounting bolts and still couldn't get it off the disc without using a long screwdriver for leverage!
If you have no luck with the jets, you can always get a 0.28mm / 0.30mm drill bit in a hand tool, and carefully drill the crap out or most of it. Its generally not advised but does work well if your super careful. Emulsion tube can be a pain in the ass. Usually its a sign there is gunk on them stopping them coming out easily. Also they are on a keyway, so if you remove them make sure that you line that keyway up otherwise you could break it off the carb which is bad. I got twin disc front on mine and over the course of winter, its made it rather hard to move about. Nothing wrong just cold temps, little disc rust from sitting (barely visible).
Did you soak them in Threebond? They need to be well soaked, even put a lid on so it doesnt evaporate. Dont give up hope on them, you really want to keep the original jets if you can. Aftermarket are just not the same.
I'll take a look for that... There's definitely a tiny bit of crud I can see in there but trying my best not to use too much force on anything. Yeah there's a local place where I can get Mikuni OEM jets but they're not cheap. One pilot will be around $7 which is fine to replace the one rounded one, but I'd much rather keep all the others. They've been soaking for a couple of days with a cloth over the top and nothing's really changed yet. I checked the year code on the tyres and they were new in 2013, so it's likely the bike hasn't been run for 5-6 years.