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A four-stroke power valve is a device fitted to four-stroke engines that constantly adjusts the internal diameter of the exhaust system to better suit the speed of the engine. Yamaha was the first to develop such a system, called the Exhaust Ultimate Power Valve (EXUP). [1] It first appeared on the Yamaha FZR EXUP and was later used on many ...
It comes with a Black valve cover on the normal VTi-R but on the VTi-R ATTS it comes with a Red valve cover, according to the Prelude [2] owner manual the h22z1 (Misspelled as h22z2) has a compression ratio of 11.0:1 which is the same as the h22A found in the JDM Prelude [2] type s.
The Honda R engine is an inline-four engine launched in 2006 for the Honda Civic (non-Si). It is fuel injected , has an aluminum-alloy cylinder block and cylinder head , is a SOHC 16-valve design (four valves per cylinder) and utilizes Honda's i-VTEC system.
Honda VTX1300 motorcycle engine. In 2002 Honda made the VTX1300S available, as a 2003 model, with an all-new 1,312 cc (80.1 cu in) liquid-cooled V-twin engine in traditional cruiser bodywork, rolling on spoked wheels. [21] It sold quickly, and by the close of 2003 sales totaled almost 12,000 units. [9]
The Honda CBX motorcycle (1978–1982) contains a 1047cc inline-6-cylinder engine. The engine used a DOHC 24-valve cam-over-bucket valvetrain to support high RPMs. The engine used a DOHC 24-valve cam-over-bucket valvetrain to support high RPMs.
The Honda Revolution Control valve is designed and works in principle like the "AETC system." A small computer monitors engine RPM and adjusts a two-blade exhaust valve with an electric servo. Honda equipped many two-stroke motorcycles such as the NSR125 and NSR250 models with RC - Valve power plants.
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Motorcycles with a V-twin engine mounted with its crankshaft mounted in line with the frame, e.g. the Honda CX series, are said to have "transverse" engines, [1] [2] while motorcycles with a V-twin mounted with its crankshaft mounted perpendicular to the frame, e.g. most Harley-Davidsons, are said to have "longitudinal" engines.