Tillitson HU won't prime

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  #1  
Old 07-03-14, 02:02 PM
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Tillitson HU won't prime

Hi All ,HU style diaphragm carb on my Trorbilt tiller won't prime,gas will go only about 1/2 way up the gas line, carb has been all cleaned.
Any thoughts.
Geo
 
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  #2  
Old 07-04-14, 05:04 AM
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You said you cleaned it but did not mention replacing anything like the diagragm. Did you replace the diaphragm? Here is a .pdf service manual for that carburetor.
 
  #3  
Old 07-04-14, 12:25 PM
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I did not replace anything ,is the diaphragm sold separately ? Also I wanted to remove the throttle shaft because it seems that the spring may be broken but I can't find an Allan or Torx head that small,any idea what that wrench might be?
Geo
 
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