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techtalk:ih:engctl01e [2018/09/12 13:42] – [IH: Engine Control - Sub-01C] hippysmacktechtalk:ih:engctl01e [2023/12/31 18:11] (current) – hippysmack
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 ====== Why Timing Advance Changed From 45°- 40° BTDC in 1972 ====== ====== Why Timing Advance Changed From 45°- 40° BTDC in 1972 ======
-Article by Dr Dick of the XLFORUM ((http://xlforum.net/forums/showthread.php?t=1547480&page=3))+Article by Dr Dick of the XLFORUM ((https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/142788-timing-question/page3?t=1547480&page=3))
  
   * 1972 marked the introduction of the 1000cc engine.    * 1972 marked the introduction of the 1000cc engine. 

Trace: • IH: Oiling & Lubrication - Sub-03J • IH: Engine Mechanicals - Sub-01G • IH: Engine Control - Sub-01E