Re: Explain reeds to me.

Silverfox Sullivan /
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They are simply a check valve of sorts.

As the piston goes up it creates suction in the crankcase.

Atmospheric pressure pushes the reeds open and lets the fuel/air mixture into the crankcase.

When the piston comes down pressurizing the fuel/air mixture, the reeds snap shut not letting the pressurized fuel air mixture back out the inlet.

They are usually used when there is some radical inlet porting present.

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