Are you sure the alternator is defective, or is the upgrade really necessary? It is not too difficult a job but it requires a big strip-down of the primary which takes a lot of time. Invest in a Haynes or Clymer manual and have a good read of the procedure. Before you attempt it, be sure the task does not exceed your toolbox or skills.
The modern Harley Big Twin motor is based on the first overhead valve Harley twin, the 1936 Knucklehead. All subsequent air-cooled Big Twin motors are just improved versions of the Knucklehead. Here's a timeline: Knucklehead: 1936-1947 Panhead: 1948-1965 Shovelhead: 1966-1984 Evolution: 1984-1999 Twin Cam: 1999-
No oil in crankcase in a Harley Big Twin. All FXR's take three quarts in the oil tank.
sporster = 883 & 1200cc V-Rod = 1130cc Big twin = 1450cc
FXR= F= Big Twin X= Small Forks R= Rubber Mounted Engine FXD= F= Big Twin X= Small Forks D= Dyna
The term 'big twin' is almost always used to refer to V twin engines, such as the Harley Davidson which were, for a while, the largest capacity motors on the market until about the mid 60's when the Japanese manufacturers started turning out 1000cc four cylinder engines. newtest3
F - Overhead valve big twin L - Wide front tire however I do not not what the D stands for.
Modern Harleys have an alternator that not only keeps the battery charged but also provides power for the lights, horn, etc. It works in conjunction with the voltage regulator which controls how much of the alternator's power goes to the battery and how much goes to accessories. Harley Big Twins built before 1970 used a generator instead of an alternator.
In all cases, from Big Twin, V-Rod, and Sportster, yes.
The engine on a Harley Davidson Heritage Softail is a twin cam 103. The engine produces up to 100 foot pounds of torque and is equipped with automatic compression release.
This will depend upon whether this is a Sportster engine (which has two separate oil supplies) or a Big Twin (which has three).
The last model year for the shovelhead engine was 1984. It was produced concurrently with the new Evolution big twin that entire model year.
This site explains the abbreviations for Harley models. F - Overhead valve big twin L - Wide front tire and Hydra-Glide front forks H - varied between High performance and Heavy duty http://hdforums.com/forum/general/5601-harley-model-designation-letters-explained.html