Ive got an 87 TW that has been driving me crazy. Ive had it for about 10 years. I used to ride it all the time with almost no problems. I had to replace the cdi several years ago and put about 1000 miles on it after that. When the cdi died, it was completely dead and wouldnt attempt to start at all. The bike sat in my barn the past 2 years and had not been started. I recently started working on it to get it road worthy again. I couldnt get it running right, and the carb was pretty gummy, so I bought a carb kit. After installing the carb kit I had it running perfect. I rode it a couple miles with no problems at all. The next time I tried starting it sputtered and died. I can usually get it running with the choke on, and can sometimes get it to idle with the choke off. You can play with the throttle and get it rev but it cuts out. I've taken apart the carb several times since my running problems and I cant find anything wrong. While running I've sprayed carb cleaner all around the intake boot looking for air leaks. I've also played with the pilot screw several times. I'm tempted to buy another carb to eliminate that as a problem, but after reading posts on here about bad cdi's, im hesitating. Does this sound like a cdi problem to anyone? Any suggestions?