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The only moving parts inside simple two-stroke engines are the crankshaft, the connecting rod, and the piston. It is the same simplicity in design, however, that causes a two-stroke engine to be less fuel-efficient and produce high specific levels of undesirable exhaust gas emissions. At the bottom of the power stroke, the transfer ports, which ...
Two-stroke engines often have a higher power-to-weight ratio than a four-stroke engine, since their power stroke occurs twice as often. Two-stroke engines can also have fewer moving parts, and thus be cheaper to manufacture and weigh less. In countries and regions with stringent emissions regulation, two-stroke engines have been phased out in ...
The engine was mounted behind the driver, [2] and featured 6.7:1 compression, capacitor discharge ignition a 32 mm (1.26 in)-throat Keihin carburetor, and added electric starting. [2] To improve stability, track was increased in 1985, to 42.5 in (1,080 mm) front and 47.2 in (1,200 mm) rear. [ 2 ]
They followed in 1998 with a 600cc version for those wanting a smaller displacement engine to the potent 700cc. Both the 600cc and 700cc engines were built in the US and used 39mm Keihin D-slide carburetors and digital CDI ignition and utilized a 136"x15"x1.75" track with an estimated dry weight of 496lbs in the wedge chassis., [1] [2]
A straight-twin engine, also known as an inline-twin, vertical-twin, inline-2, or parallel-twin, is a two-cylinder piston engine whose cylinders are arranged in a line along a common crankshaft. Straight-twin engines are primarily used in motorcycles; other uses include automobiles, marine vessels, snowmobiles, jet skis , all-terrain vehicles ...
In four-stroke cycle engines and some two-stroke cycle engines, the valve timing is controlled by the camshaft. It can be varied by modifying the camshaft, or it can be varied during engine operation by variable valve timing. It is also affected by the adjustment of the valve mechanism, and particularly by the tappet clearance.
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- 4075 Hoover Road, Grove City, OH · Directions · (614) 871-3711
