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    YZ250F Shop manual

    I am looking for a "PDF" shop manual for the 2004 YZ250F.
  2. Anyone with some advise on using Wiseco's 12.0:1 piston. I sezed twice using 10.5:1 Wiseco piston with .002 and .0025 clearances???!!! Ice racing is tough on air cooled motors due to low temps.
  3. Can a properly adjusted timing chain in a good condition motor(79XL/XR500) skip a tooth due to extreme use? I mean flat out ice racing Canadian style....