I would advise rejetting to 115s with the TORS. As Geoff said, they come lean from the factory in order to pass environmental regs, so while you might be able to get away with not rejetting, I wouldn't want my bike running that lean. Rejetting on the bike is relatively easy--the only frustrating part is getting the Phillips-head screws off so that you can remove the float bowl and gain access to the bottom of the carb. Most of us have used this as an opportunity to remove the Phillips-heads and replace them with nice stainless steel allen heads, available from newbonneville.com at moderate price. Subsequent work goes much more quickly. It is not necessary to remove the carbs to work on them, but you'll probably want to put together some small tools such as mini-rachets with different bits, including a 3mm allen head bit to remove the new allen head screws later on. A "D" tool is required for adjusting the idle mix screws. Early Bonnies had the idle mix screw covered with a plug to discourage adjustment, but since, I believe, 2005, the screws are not plugged, but have a special "D" shape to them. The tool also is available from newbonneville.com. There is nothing special about the carbs being heated--you will just want to disconnect two electrical connections at the bottom of each carb and remember to reconnect them when you are done. I would highly recommend looking at Peter Jenks Tuning Guide in order to get oriented. Many have started from Jenks' recommendations and adjusted as needed, but it provides some good info on these specific carbs, and well as a very helpful photo of the underside of the carb with the float bowl removed. If you go to the bottom of the Jenks page and click on link, you can get a pdf and print out the whole tuning guide.
http://http://www.triumph-bonneville...products_id=96
