Hi Guys,
I have a JCB SPM4855F mower with what I believe to be a Honda GCV135 powering it.
The engine is running slowly and is 'hunting' [revs fluctuating].
I have removed the carb and cleaned it although I must admit I didn't put a pin through the jets! they did appear clear though.
I have re assembled the carb and have run the mower but the hunting problem persists!! I have change the plug and the fuel!
I am testing it without the air filter attached but, I don't think that should make too much difference should it?
Any ideas as to how to resolve the running problem?
