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Recent content by jacob

  1. J

    Cb750 Running wierd

    Here is a pic of the plug after 10 miles, its a grayish white, is this okay? I also have a 70 and 105 in currently. The bike does run a little better, less deceleration backfire. im probably gonna drop to stock jetting 68,102 because it does sputter at full throttle a little bit. Edit, just...
  2. J

    Cb750 Running wierd

    Wow, this helps alot, I didn't realize I was tuning it up wrong. Anyways I pulled the carbs and im letting them soak in water with simple green (household degreeser) for a few days then gonna blow out with air compressor. May go ahead and do that a few times. Also i will drop the jetting to...
  3. J

    Cb750 Running wierd

    hey thanks for the response, so if you cannot remove the number 38 jets, are they just adjusted by the A/F screw on the bottom of carb? and how would your recommend cleaning the passages? I have sprayed caned carb cleaner up in the passage before. On my plugs i have over 100 miles on them and...
  4. J

    Cb750 Running wierd

    I recently restored a 1979 Cb750, had to put a new head gasket in, completely rebuilt carbs and carbs are synced stuff like that, anyway the engine runs great. I have a mac 4 into 1 exhaust and jets are at 105 main 75 idal, ( stock is 102 main 68 idal) But here is the problem, the plugs are...
  5. J

    rebuld problems

    also after if re timed it i did a compression test and i got 145 pretty solid across all 4 cylinders. so theirs no leakage occurring in the valves, so wouldn't that mean my valves are not bent?
  6. J

    rebuld problems

    thanks for the reply, but i did have it timed wrong, i re adjusted and it starts up just fine. so i am guessing nothing got hurt.
  7. J

    rebuld problems

    hi, i recently replaced a head gasket on a 1979 Honda cb750 dohc, after getting all the cams in, new valve shims and the timing correct, i noticed a problem, i can turn the motor over clockwise just fine but when i try to turn it over counter clockwise (witch is the direction it runs in) it...
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