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Carburetors were standard on Sportster engines until 2007, when they were replaced by the Delphi Electronic Sequential-Port Fuel Injection (ESPFI) system. A simplified derivative of the engine was used on the Buell Blast entry-level motorcycle from 2000 to 2009. The Sportster engine as used on the Buell Blast was in most ways similar to the one ...
Lubrication is dry sump, the exhaust passes under the engine with a 2 into 1 layout. Distribution takes place via two valves controlled by pushrods and rocker arms with hydraulic valve lifter and hydraulic valve clearance compensation. Powering it is an electronic fuel injection system, with a 45mm throttle body.
The XR1200 was the first Harley-Davidson to utilize Down Draft DDFI II fuel injection. To be released as a late 2006 model. Introduction of helical gears in transmission (2nd-5th). 2007 Fuel injection replaces carburetion on all models. 2008 front axle enlarged from 3/4 inch to 25 mm, rear axle decreased from 1 inch (25.4 mm) to 25 mm
Harley-Davidson engineer Mark Miller created the VR-1000 engine with design input from Erik Buell, Cosworth, and Jerry Branch of Branch Flowmetrics; the cylinder head and electronic fuel injection were designed by Roush Industries which also built the series production engines. [13]
Each motorcycle was individually numbered and came in one of two colors, Mirage Pearl Orange or Vivid Black. 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.
The engine has electronic fuel injection. [7] Electric powered reverse was available as an option when the Tri Glide was introduced, [7] but later became a standard feature. Electronic cruise control is standard. [5]
In 2007, the Twin Cam 88 engine was replaced by the fuel-injected 1584 cc Twin Cam 96 engine across the entire Harley-Davidson Big Twin lineup, including the FXD series. The 'I' model designator was dropped for all models, since all Big Twins from then on had fuel injection. [citation needed] The FXDF Fat Bob was introduced in 2008.
An electronically controlled unit injector (EUI) sometimes referred to as a mechanical electronic unit injector (MEUI) is a unit injector (UI) with electronic control. It performs the same function as a conventional unit injector in an internal combustion engine , such as in an on-road or off-road vehicle or a diesel-electric locomotive .