73 240

I've been through what most have with these. I have 2 1973 z's. One i've had for about 2 years, the other I got 2 weeks ago. Your issue may not be carbs at all but rather fuel delivery. I've had to drop, clean and one tank I had to send to moyer fuel tanks to have it reconditioned. Rust kept plugging up the fuel feed lines and filters. The other thing you need to check is the ignition. All the tuners recommend, adjust valves, set ignition, tune carbs. In that order. Carbs are last. Post some pics if you can. If the carbs are the culprit they are fairly simple once you get over the anxiety of taking them off and tearing them apart. I start from top to bottom on a long beach towel and disassemble them and lay the peices in order I took them off, then reverse. Good luck!