I did the flow test with and without the cap on and it didn�t make much of a difference. The petrol was flowing freely from the tap.
I had another look over the engine on the weekend and its worse again. It is now hunting at high and low speeds.
I have cleaned the carby as thoroughly as I know how how. Could it possibily be the needle seat? I couldn�t remove it during the cleaning process. I did however remove the top jet and float chamber. I gave it a good clean with carby cleaner and compressed air.
Grumpy, Could you please explain how the mixture screw works as I havent worked on this type of carby before. I did try adjusting it however it didn�t make much difference.
To make the process easier I have included an extract from the manual detailing the carby setup.
The mower usually starts first pull when cold and if I move it to full speed from the choke position it runs beautifully��.but as soon as I move the thottle leaver it starts to hunt and high and low speeds. I hope this makes sense.
I am determined to get this machine running again as it seems like a damm good unit.
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