not all that freely as it gets a little tight when the piston is completely up.

Plus some things i forgot to add.

-During the first time when it ran for 15 seconds there was no smoke whatsoever (muffler blocked ??)

-When I turn the turn the prop in the opposite direction the carb spits fuel out (normal ?)

-Some bubbles in the fuel line (I heard that's bad : so how do i get rid of it ?)