Iame K25 Hi RPM after replacing fuel line and reset Caberator Settings

I am the proud new owner off a IAME K25 125cc, Last run it hold down after leaving the corners and my guess was that it was too rich in Fuel.

I decided to reset the carburetor to factory by setting L 1 1/4 TO and H 1TO (I regret not remembering the current settings!). Now when it starts RPM go up fast (without throttle).
I can lower the RPM by increasing L. then it runs for a while and after a short while it stops. If I try the throttle it stops immediately.

First likely suspect is an air leak somewhere via one of the gaskets.

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You where right, everything is ok now

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