Thought I'd start a thread on this that hopefully serves as a reference for the G3 carburettor. I've been doing up a Victa 2 stroke Mayfair with a G3 carby. I attempted to clean it and took off the bottom part of it and soaked it in carby cleaner. The top part was still connected to the throttle cable and the governor unit (I wasn't sure how to get these parts off) so I sprayed carby cleaner into all the orifices, took off the float, checked and cleaned the needle. Then I put compressed air through all the vents. I reassembled the whole thing and then tried to start the mower. I turn the fuel tap on, hold the tickler until I can see some fuel from the hole below the tickler. Then no matter what i set the throttle on, it doesnt start. Then i put some petrol into the spark plug hole and it runs for approx 45 secs obviously burning the petrol that's in the system as i had shut the fuel tap off as soon as it fired up. Turned the fuel tap off because i cannot get the kill switch to work on this mower. Maybe I'm using the tickler incorrectly but why is fuel getting to the carby and still not running? Couldn't find much on the G3 carby so hope that someone here can fill in the missing information.