Virtually new, only a couple oftanks of fule so far.
Having problems with fuel leaking in vicinity of the pump (black plastic version on this engine) when engine running; also difficult to start and tune up.

Leak appears to be coming from the pump itself. Have checked all fuel lines and fitment to respective nipples, i.e. from tank to pump and pump to carb etc, they are securely fastened.
Where could fuel be coming from, drips noticably from the pump area.
Engine was initially difficult to start and would only run at tick over speed and had to have main needle open approx 4 turns!. Gradually, with a bit of tinkering with secondary and main eventually got it to run at reasoanble speed.
Pump works o.k. by disconnecting line from pump to carb, plenty of fuel exiting when engine turned over.
Suspect, regulator, fuel blockage?.
The leaks is a mystery at present and don't wish to tamper with pump/carb unnessarily.
Some thought /advice please