What is the PSI for good compression?

Discussion in 'General Scooter Discussion' started by FV43576, Jun 29, 2021.

  1. FV43576

    FV43576 Member

    Messages:
    38
    I am new CBT, I have a Suzuki CS50 1987 is 50cc 2 strokes, I was ride through the countryside, when the engine shut for reason when I down the hill at 30mph-ish and start to go up the hill to the junction at 5mph it stalls the engine, but I was not able to start again, I had to walk to home 6 miles with my scooter!
    The next day trying to start on cold it won't start, there are sparks on the plug, brake pedal sensor is working, start the engine is go turn over, but it won't fire. Carburettor has been cleaner with no sign of faulty with overflow level or block, adjustment is fine, I guess the compression it feels less stiff when starter than before it must have worn and leak, but the scooter has only done 3453 miles it still mystery.

    I was not sure what the range of PSI for a good compression?
     
    Last edited: Jun 30, 2021
  2. Stevep

    Stevep Well-Known Member

    Messages:
    5,898
    100 psi or above
     
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  3. FV43576

    FV43576 Member

    Messages:
    38
    Thanks.
     
  4. Suzukistreetmagic1

    Suzukistreetmagic1 Member

    Messages:
    179
    Are we all still alive on this forum Been like two 24 hours and no help on my thread
    And it’s good to read this thread as well hope it gets fixed
     
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  5. FV43576

    FV43576 Member

    Messages:
    38
    Found out, the cylinder is good pressure of 119psi. It must be the carb, so I am to check it out again soon.
     
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  6. Suzukistreetmagic1

    Suzukistreetmagic1 Member

    Messages:
    179
    That’s good thing I hope some
    One out there could look at my thread I had night mate pushing mine home
    Last weekend
     
  7. Stevep

    Stevep Well-Known Member

    Messages:
    5,898
    You have multiple threads going about this bike, try to stick to one thread as it becomes hard to follow.
     
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  8. Suzukistreetmagic1

    Suzukistreetmagic1 Member

    Messages:
    179
    Okey mate
     

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