I'm not sure how difficult those inner carb screws are to access, I haven't had a really close look yet. The reason for my musing is that Carbtune sell this 90 degree gearbox screwdriver they says has zero backlash - obviously rather crucial when a 16th or even a 32th of a turn may be all you need to set your carbs accurately.
http://www.carbtune.co.uk/bevel.htmlI found it when I noticed the Carbtune Pro 4 available new for a wide range of prices on eBay.
It's often the case here in the UK that manufacturers won't sell their products directly to the public, or they use official wholesale distributors, and quote silly RRP prices that are always discounted by official retail outlets. Carbtune are different. They sell direct from their website. And you get the pouch included for... LESS than anyone on eBay!!!
I'm not a representative of Carbtune, indeed I learned of them from one of you guys only very recently - but I'm working on a free pint of Guinness next time I'm in Belfast
