HELP power valve leaking

[spinisking]

Hi all i just got a ec 300 2001 and it was fully rebuilt before i bought it.

it runs like crap i tried everything with carb that's perfect.

tried to do leak down test but its leaking from the power valve bearing.

any help would be greatly appreciated

 

[gasgasman]

That's normal. If you had sealed bearings, the "air" leak would be a lot less.
Check the reed valve.

 

[spinisking]

they look good to me