Scooter Crankshaft Runout Check : 139QMB QMB139 50cc GY6 1P39QMB

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Checking the runout on my 139QMB four stroke scooter engine with a dial indicator. Shows roughly .001". The service limit from 2 different manuals is .1mm or .004".
  1. 49ccScoot
  2. scooter
  3. moped
  4. gy6
  5. 50
  6. 50cc
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my scooter have some kicking sound from the CTV when i hardly accelerate and loud spinning sound when i off throttle, what was that problem ?? i just buy that scooter 1 year ago and the problem have just started  

endcap
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What should be the horizontal crankshaft runout ?

fakenodata
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Hi there big fan ov your vids, and iv allready subed you, i have a question. I changed the variator weights, on my 50cc 2T sachs moped. But after putting it back together, iv fraid the bolt and the crank shaft, like an idiot i used an air gun and it just spun the thing, is it REPAIRABLE.? It was a 10 nut but now no good, could i rethread the crank shaft, and order a nut.. or do i have to change the whole crankshaft.? Pls help...

matthewmarshall