I have 2 Grass Scorpions, oldish machines and both made in Usa. They don't have an ignition switch. No 1, changed all the fuel lines as well as primer bulb, cleaned carby out, diaphragm and gaskets in pretty good condition so gave them a clean. Machine starts in partial choke but dies instantly. Check the spark plug and if anything it's a little wet so assume petrol getting there.
No 2, been sitting around for years, removed most of old petrol/oil residue as per Big Ted and Grumpy's instructions. Replaced one perished fuel line. Has only fired up once and died immediately. Checked spark plug and it looks wet. Tested spark plug on trimmer's chassis and still plenty of spark.
I'd like to get at least 1 of these to work, can anyone give me some advice please?