PDA

View Full Version : dies on full open choke?


d.m.d.
04-03-2007, 04:45 PM
i have a couple craftsman string trimmers that start good but only run half way decent at half choke.even when warm if you pull the choke completely off the things will bog down and die.i know they are junk but i want to run them till they are dead then i will go get a stihl or echo.any ideas on this problem?

razor1
04-03-2007, 04:53 PM
If you haven't yet, remove the screen from inside the muffler. When they clog it won't run. And of course, new plug and tune the carb.
Good Luck

d.m.d.
04-03-2007, 05:54 PM
has new plug.i just went out and took the muffler off and its a nice little box.its self comtained and just short of cutting it in half it doesnt come apart.it looked pretty clean actually.......

khouse
04-03-2007, 06:16 PM
Were the x ports clean? Sounds like a carb rebuild or replacement is in order. Maybe time to look for that commercial unit?

puddin' pie
04-03-2007, 06:20 PM
what about the air breather is it clean. doesn't sound like enough air is getting through

d.m.d.
04-03-2007, 06:34 PM
filter is clean,fresh gas also.ill probably get a new echo.i will say my old craftsman stuff has paid for itself.and my leaf blower has amazed me,that thing had the hell used ot of it last fall on leaves.id run it dry fill it up and go again but they dont push enough air...........thanks for all responses.

topsites
04-04-2007, 12:44 PM
The only thing left I can think of is a compression test, or possibly the coil.

lawnspecialties
04-04-2007, 01:16 PM
Check your primer bulb for cracks.