From the Boutique:

Technical Information

General Tech

Basic Performance and Technical Information - A Good place to start.

• Frame and Engine Number Designations
• What is the Harley Tax?
• What are Stage 1/2/3 modifications?
• Lee Bussy's Oil Study Report (Off-site)

CV Carburetor Information

• How does a CV carb Work (off site)
• Maurice's CV Carb Rejetting Instructions
• Lee C. Bussy's Rejetting Instructions
• How to Replace the CV Carb's Top Cover without ruining the delicate diaphragm.  (Off-site)
• How to put a CV carb on your Ironhead.

Working on the Bike

• Rickko's famous bike lift.
• How to change your own tires (off site).
• What wrench fits what (Evo)?
• Fixing the Craftsman Motorcycle/ATV Lift

Information about electrical and charging systems

• Generators and Alternators - How do they work?
• Charging System Troubleshooting.

Evo Tech

• 883 to 1200 Conversion
  • James Taylor's conversion notes. (Requires Adobe Acrobat Reader)
  • Dan Ratner's Conversion notes and FAQ. (Off-site)
  • Rickko's conversion.  (Off-site)
  • Maurice Riggins' conversion.
  • Philip Holt's conversion.  (Off-site)
• Tom Metty's 883 to 1450 Conversion!!
• Top end noise after conversion.
• Sportster and Buell Heads
• Kerry Lockhart's Stage 3 development.
• George Crim's Exhaust Shootout.
• A Note About Cams.
• Cam Selection Spreadsheet. (Thanks to Stephen Mullen of www.nightrider.com and George Crim)
• Cam Dyno Comparison: N4 v. N2
• Adjusting the VOES - When, Why, and How.  (Off-site)
• How to change your oil: with large images (6.5MB) - with small images (700KB)
• Oil filter cross reference for Evo Sportsters 
• How To Deal with the Oil Blowby Phenomenon (Off-site)
• How to change fork oil on your 1200S forks.
• Wheel bearing inspection and service. (Pre-2000 model years)
• Speedometer Diagnostic Codes
• Dale's Custom Headlamp Conversion Instructions

Ironhead Tech

• Rear Drum to Disc Brake Conversion
• Another drum to disc conversion (off site)
• Dual Plug Your Heads
• Oil Line Routing Diagram
• 2 Front heads:"the Poor Man's Vincent"
• Very nice JPG of Ironhead with two front heads.  (186KB, 1280x960)

More...