11-04-2019, 08:17 PM
By all means check the points as Chris suggests and all the ignition circuit. However the points work the firing on all cylinders so why would the points effect just the plug in one cylinder. I would check the dizzy cap for the connection to the cold cylinder together with the plug and lead. Also to check the tappets and valve for the colder cylinder. In my mind there is something stopping that cylinder firing correctly or even not at all thus keeping it cold. Is the plug oiled or sooted up.
John Mason
John Mason
Would you believe it "Her who must be obeyed" refers to my Ruby as the toy.