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Monday, October 03, 2005

Ironhead Sportster FAQ's

The Sportster and K models have a unit construction this is when the primary, and transmission are all part of the same Casings.
  • XL is the call letters used to describe sportsters
  • XLH is used to refer to Electric-start sportsters
  • XLCH refers to kick start only models

    X was in the normal series, following the U and V used for flathead Big Twins.
    L stood for high compression (7.5:1 in 1957).
    In 1958 came the XLH with H meaning Higher-power or High-compression (9:1) or Hot. Also in 1958 was the XLCH: The C in XLCH was intended to mean "Competition", but the late Hal Robinson used to claim the CH on his bike stood for "Charley Horse" because it was highly modified and had enough initial ignition advance to kick back rather severely

    The kick-starter on the 1957-79 models left much to be desired

    The years that an electric and kick start may be incorporated on an Iron Head are 1967-1979 All 1980 and Later sportsters have electric starters. 1980 and later engine cases are not machined to take some of the kick starter components

    The Sportster engines were originally actually 53.9ci. (883cc) but were designated as 55ci. This was upgraded (in 1970?) to 61ci (1000cc), redesigned in '73 but still 61" and stayed relatively unchanged untill the '84 evo version.

    The 883 and 61" were both produced the first year of the 883.

    Options for Sportsters abounded but these same letters have been used since 1958 in various combinations, plus the XLCR (a "cafe racer" style, with bikini fairing) and the XLT (Touring, with bigger tank, thicker seat, and hard bags straight off the FLHS), both produced 1977-1978 only.

Friday, September 23, 2005

Welcome To the Ironhead Sportster Web Blog.

Ironhead sportsterWelcome To the Ironhead Sportster Web Blog.