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  1. S

    Main Jets

    I have just rebuilt the Keihin carbs on my 1970 CB-750. I ordered and received rebuild kits. But the main jets I received were 150's. The jets I removed were 120's. Now I am having trouble tuning the carbs. I can get the idle about right. Although a little high at 1100. The engine runs...
  2. S

    Oil Pressure

    Good Morning. I have a 1970 CB750K0. I have recently done a total over-haul on the engine and have around 480 miles on the engine. It run's great ( though I am having a little trouble dialing the carb's in. But I think that is normal for old carbs.). I began to see the oil pressure light...
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