The carburetor rebuild grinds on. It took the better part of a week to get the airbox boots in, and when I opened the bag they came in I’d been charged for four but only got three. I tried contacting Two Wheel Motorsports to ask if the fourth boot was sitting around there, but they didn’t get back to me. The Concours uses two types of boots to connect the carbs to the airbox and one of the old ones still had pretty good flexibility in it, so I used the three new ones and the best of the old ones. I tried for the better part of two hours to get the carbs mated to the airbox properly with the stiff, old airbox boots without success. With my home-made hooked screwdriver (to slip the boots onto the intakes) it took about ten minutes of adjusting to get a good seal on all four carbs. If you’re doing an old carb rebuild, buy some new airbox boots, it’ll save you a lot of frustration and swearing.
The old airbox boots look rough, but the real issue is that the rubber has hardened over time and no amount of heat will soften them up. The new boots were supple and easily went on the carb air intakes with minimal fuss and bother.
I pay for four and get three. Fortunately one of the old ones was still pretty supple so I could reuse it.
Ten minutes and the carbs are back in place. Get new airbox boots if you’re rebuilding an old carb!