Air/fuel mixture adjustment

Anyone know of a inexpensive air fuel adjustment tool, or method to adjust a/f mixture. If any one has had to make adjustments, they know it's very hard, the screws are located behind the intakes and often times the bike needs to be running or warm, so they are hot. You can buy a specialty tool online, but they are about $100.

If your going to keep the bike for any length of time buy the tool. Made by Kora I beleive. Get 6 cheap Vac gauges while your in the buying mood. Don't attemp the adjustment without them. BR

How different is a special tool as opposed to a little D-driver that comes with a jet kit?

I have found that wearing a layer of a thin cotton covered with a latex glove works pretty good. Scribing index marks on the D-tool helps as well.

Does adjusting the fuel screw affect carb sync?