ORIGINAL: Craig 01
Hi Greg,
If your using a known good plug and your problems have only recently started,which it sounds they have,check the carb regulating diaphragm is soft/supple and not deformed/stiff,whilst your at it check the pump diaphragm and flap valves are supple and not deformed as well.
Craig
Not really a reason to. Most have moved on to the DLE 55.