I have a 3W 56 twin and as with all other 3W engines, you have to attach the throttle arm. What's the best way to go about doing this? I've tried Silver Solder, but I couldn't get it hot enough without using a torch and the fuel inlet nipple is right there. I don't think lead solder would work. What about JB Weld? I'm going to try to drill out the shaft for the throttle plate and then tap it for a small screw, but that may not be succesful. Any ideas?