Ads
related to: yamaha 4 stroke powerhead price guide chart for adultssmartholidayshopping.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
In 1964, Honda Motor Co. introduced its first four-stroke powerhead. [19] In 1984, Yamaha introduced their first four-stroke outboards, which were only available in the low-power range. In 1990 Honda released 35 hp and 45 hp four-stroke models.
"Cutaway of Yamaha Genesis inline-four 20-valve engine" The DOHC Genesis engine has five valves per cylinder and downdraft carburetors. Yamaha adopted the 5-valve concept, using three intake valves and two exhaust valves per cylinder, because it allowed both excellent volumetric efficiency and high RPM. As designers began to appreciate the ...
In 1967 a new larger displacement model was added to the range, the 350cc two stroke twin R-1. In 1968, Yamaha launched their first four-stroke motorcycle, the XS-1/650 which was a 650cc four-stroke twin, a larger and more powerful machine that equaled the displacement and performance of the popular British bikes of the era, such as the Triumph ...
Ads
related to: yamaha 4 stroke powerhead price guide chart for adultssmartholidayshopping.com has been visited by 1M+ users in the past month