my trimmer has new carb, fuel lines,and vent and I still have the same problem , starts great and runs strong for about 30 mins, then engine starts to lose power and shake, if I turn it off for a hour or so and restart its fine for another 30 or some mins ps I also changed gas cap, im thinking coil
Check to see if the fins around the cylinder are clean and not plugged with crud. That will restrict cooling.
#3
tom3
I have a blower that does the same thing. Have to adjust the carb a bit richer to keep working. Usually set it back after I quit so it will run right next time.
Generally with the new stuff the ignition is either go or no go, although a spark plug can get weak when really hot.
