Workings of a 2 Stroke Engine

[bandit7]

and to stop air/fuel being pushed out as opposed to being sucked in

[RD RACING]

you mean compression in the cylinder / head ?

[bandit7]

no the bottom end

[Stellerlicious]

and also to stop the mixture leaking back out the carby, make shure u change the gaskets when changing reeds also as the old gasket may be damaged

[RD RACING]

do you think the reeds stop the fuel mixture from escaping back through the carby,s venturi ?

[bandit7]

not too sure, other answers were slightly educated guesses

[RD RACING]

a clue, why is it very important to have good sealing reeds to plate block ?

[bandit7]

i need more of a hint, until 2 weeks ago when i got my bike i had no idea how a 2 stroke worked.

[bandit7]

do the reeds stop exhaust fumes from exiting through the intake aswell?

[RD RACING]

you know when the piston is making its way down in stroke, this causes a build up of pressure which in turn forces the reed to close, just like closing a door. if the reed has a bad seal on the plate cage, pressure is lost in the crankcase.