In this video I am going to be covering the two stroke power valve. The power valve is a very important modification that was made to two strokes in the 1980s and has been used ever since. The point of this design is to increase the size of your power band. Before the Powervalve two strokes exhaust ports were a fixed size and tuned pipes designed for that port size. This caused a very one dimensional engine meaning it would only be good at low rpm or high. If you guys haven't checked out our other two stroke videos I encourage you to do so!
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