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Old 03-11-2010, 05:17 PM
  #7  
Edwin
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Join Date: Feb 2002
Location: Leander, TX
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Default RE: cleaning old engine

Are you a gear head? If not, leave the head on, take out the glow plug , remove the back plate and take off the carb and muffler. When done, rinse with water real good and re-oil before assembly (liberally). I use marvel air tool oil. After assembly (and oiled up) rotate the engine to move the oil around. Its a good idea to run the engine pretty soon afterwards in case you missed some water someplace. Unless you're cleaning carbon out of the heads on a 4-stroke, theres not really a good reason to clean it unless you want to, or its been sitting awhile and might have some aluminum oxidation or rust on the bearings inside from being improperly stored. I just like to clean them once and awhile when I do high time maintenance.
Edwin