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My cb750c ran like that, and got worse as she heated up. Discovered the exhaust valves were too tight. Some of them were down to 1.5 thou, so i shimmed them all to between 5 and 6 thou.....big difference.
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My cb750c ran like that, and got worse as she heated up. Discovered the exhaust valves were too tight. Some of them were down to 1.5 thou, so i shimmed them all to between 5 and 6 thou.....big difference.