You have to tune by throttle position. My engine ran rich at idle to 1/8.loaded.up the plugs had to lean out.from there on up runs and pulls strong to full throttle.
original owner of a 1984 gpz 750
1985 turbo 750 stock, being restored.
1984 gpz 750 with 810 cc wiesco's megacycle cams(471-10) 34 mm flatslides v&h pipe ported head dyna ignition. bottom end, crank case from turbo 750 and sprockets.
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