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When the transfer is complete, the piston is on the compression stroke but the exhaust port is still open, an unavoidable problem with the two stroke piston port design. To help prevent the piston pushing fresh mixture out the open exhaust port the strong acoustic wave (produced by the combustion) from the expansion chamber is timed to arrive ...
The KTM 300 is a series of 2-stroke enduro / off-road motorcycles made by KTM. They are the Penton-inspired 1984 300 GS, the 300 DMX, the dirt only 300 MXC, European road legal 300 EXC and the US 300 XC (close-ratio), 300 XC-W (wide-ratio gear box) and 300 SX (Motocross) versions. The KTM 300 is designed for difficult off-road conditions.
In 2016 model upgrades include Pipe Bomb DW-1 Exhaust on the TSX and TSR models to obtain better performance. [3] Ts300 2 stroke introduced. The TSR 150 advantages from additional improvements to suspension, damping and handling with the newest designed rear linkage, whereas the TSX 140 enjoys a brand new seven Series aluminium rims and an upgraded exhaust.
It was fitted to all of the later models of the RZ/RD two-stroke road bikes (125, 250, 350 and 500 cc), the TZR range. It was also added to the DT(125lc 2/3) range after 1984 (but was locked closed to comply with UK learner regulations until the (R) in 1988-04 which had a fully functional YPVS valve) the DT125R has a better design of engine ...
In a two-stroke engine, such as that used on dirt bikes, a bulge in the exhaust pipe known as an expansion chamber uses the pressure of the exhaust to create a pump that squeezes more air and fuel into the cylinder during the intake stroke. This provides greater power and fuel efficiency.
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 ...