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  1. Y

    M135 spit'n and sputter'n

    what type of pump is it and what is set up for a regulator? These carbs require very little fuel pressure, 3-5psi max
  2. Y

    M135 spit'n and sputter'n

    True enough, but what i have found is that a low compression issue tends to smoothen out a bit after it has been run and warmed up, not get worse. (compression rises on a warm engine) But still, those compression test #'s sucked badly...
  3. Y

    M135 spit'n and sputter'n

    not sure what the specs are supposed to be for these old pigs, but the compression does seem pretty low... Generally i like to see ~120psi min and ~10% variance between cylinders. but then again, these old pigs could be much more tolerable. I agree that it could be an ignition issue. like...
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