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A new transmission, with the primary drive sealed in an oil bath, was introduced for 1961. [ 4 ] The Topper H was introduced in 1961 (sold through 1965) with a new alloy cylinder head that increased the compression ratio to 8.0:1, a reusable foam air filter, and revisions to the cylinder ports and air intake tube.
Towards the end of the Shovelhead's production, Harley-Davidson made numerous modifications in an attempt to keep the engine usable for production. Belt drive was added to their motorcycles in 1980 to prevent the oil leakage from the enclosed chain, along with a 5-speed transmission and rubber motor mounts to help reduce vibration. [1]
1979 Last year for the kickstart only XLCH, only 141 made. 1985 Last year for the "Ironhead" overhead-valve engine. 1986 "Evolution" engine introduced in 883 cc and 1,100 cc sizes. 1988 1200 cc engine replaces 1,100 cc engine. 1988 Constant velocity carburetor replaces butterfly carburetor. 1991 Five-speed transmission replaces four-speed.
The Tri Glide Ultra Classic is the first three-wheeled motorcycle produced by Harley-Davidson since the Harley-Davidson Servi-Car, which was manufactured from 1932 to 1973. [ 1 ] The Tri Glide is based on the Harley-Davidson Electra Glide Ultra Classic , a conventional two-wheeled touring motorcycle . [ 1 ]
Harley-Davidson Twin Cam engine at the Harley-Davidson Museum. The Harley-Davidson Twin Cam are motorcycle engines made by Harley-Davidson from 1998 to 2017. Although these engines differed significantly from the Evolution engine, which in turn was derived from the series of single camshaft, overhead valve motors that were first released in 1936, they share a number of characteristics with ...
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The Panhead is an overhead-valve Harley-Davidson motorcycle engine, so nicknamed because the rocker covers resembled cooking pans. The engine is a two- cylinder , two- valve -per-cylinder, pushrod V-twin , made in both 61 c.i. (EL) and 74 c.i. (FL, FLH) displacements.
Also in 2007, electronic fuel injection was introduced to the Sportster family, and the Nightster model was introduced in mid-year. In 2009, Harley-Davidson added the Iron 883 to the Sportster line, as part of the Dark Custom series. In the 2008 model year, Harley-Davidson released the XR1200 Sportster in Europe, Africa, and the Middle East.