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techtalk:evo:priclutch02 [2024/12/16 11:16] ixl2relaxtechtalk:evo:priclutch02 [2024/12/16 11:17] (current) ixl2relax
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 The tension on the primary chain, rotating between the engine sprocket & the clutch sprocket, is controlled by an adjustable 'shoe'. This nylon shoe rides against the bottom length of the chain and reduces the slack as the upper length of the chain transfers engine power. Too little slack in the chain and it will bind in its rotation. Too much slack and the chain will slap as the engine decelerates and then accelerates. The tension on the primary chain, rotating between the engine sprocket & the clutch sprocket, is controlled by an adjustable 'shoe'. This nylon shoe rides against the bottom length of the chain and reduces the slack as the upper length of the chain transfers engine power. Too little slack in the chain and it will bind in its rotation. Too much slack and the chain will slap as the engine decelerates and then accelerates.
-<code> 
  
-====== Primary Cover Differences ====== 
  
-</code>+====== Primary Cover Differences ======
  
 The 1986-1990 cover uses a round, screw-in, primary chain inspection cover with a 'chevy symbol' indentation to unscrew it. It also used a relatively small, round, screw-in clutch adjustment cover, which also used the 'chevy symbol' tool. The 1986-1990 cover uses a round, screw-in, primary chain inspection cover with a 'chevy symbol' indentation to unscrew it. It also used a relatively small, round, screw-in clutch adjustment cover, which also used the 'chevy symbol' tool.
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 Over the years, the primary cover has been available in different finishes (polished Aluminum, rough Aluminum, Chrome, Black, etc.) with different part numbers for those variations. Over the years, the primary cover has been available in different finishes (polished Aluminum, rough Aluminum, Chrome, Black, etc.) with different part numbers for those variations.
-<code>+
  
 \\  ====== Quad-Ring - Clutch Inspection Cover ====== \\  ====== Quad-Ring - Clutch Inspection Cover ======
  
-</code> 
  
 From 1994-later the Clutch Inspection Cover (AKA: Derby Cover) has had a sealing ring, often referred to as the Quad-Ring. It is circular, but its cross-section profile is not round like an o-ring, but rather four-sided flat. The quad-ring P/N is 25463-94A. See discussion at [[https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-drivetrain/sportster-motorcycle-transmission-clutch-primary-secondary-drive/183554-clutch-cover-gasket?t=1974683|https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-drivetrain/sportster-motorcycle-transmission-clutch-primary-secondary-drive/183554-clutch-cover-gasket?t=1974683]] From 1994-later the Clutch Inspection Cover (AKA: Derby Cover) has had a sealing ring, often referred to as the Quad-Ring. It is circular, but its cross-section profile is not round like an o-ring, but rather four-sided flat. The quad-ring P/N is 25463-94A. See discussion at [[https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-drivetrain/sportster-motorcycle-transmission-clutch-primary-secondary-drive/183554-clutch-cover-gasket?t=1974683|https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-drivetrain/sportster-motorcycle-transmission-clutch-primary-secondary-drive/183554-clutch-cover-gasket?t=1974683]]
  
 {{:techtalk:evo:priclutch:94-up-quad-ring-1-baby883.jpg?600|94-up-quad-ring-1-baby883.jpg}}{{:techtalk:evo:priclutch:94-up-quad-ring-2-baby883.jpg?400|94-up-quad-ring-2-baby883.jpg}} {{:techtalk:evo:priclutch:94-up-quad-ring-1-baby883.jpg?600|94-up-quad-ring-1-baby883.jpg}}{{:techtalk:evo:priclutch:94-up-quad-ring-2-baby883.jpg?400|94-up-quad-ring-2-baby883.jpg}}
-<code> 
  
-\\  ====== Primary Chain - Tensioner ====== 
  
-</code>+\\  ====== Primary Chain - Tensioner ======
  
 **Part Numbers ** **Part Numbers **