Question Hello, I have a brand new troybilt weedeater tb20cs model. It worked great
last fall and never had a problem with it. It sat in my garage for about 3 or 4
months; got it out and remarkably it didn't start at all so i gave up. The next
day I tried again and it did start but when i turned the choke off it would
stall. I then left it at half choke because it wouldn't stall at idle; but once i
gave it full throttle it would stall. I then messed with the idle screw to see if
that would work and of course it wouldn't. Keep in mind all this was with
fresh oil/gas mixture. 2 cyle engine. any ideas would be great! thanks
AnswerRobert
I suggest replacing the needle and if the needle isn't rubber-tipped, then replace the seat as well. If the needle IS rubber tipped, then just use a q-tip soaked with carb cleaner to clean down in the seat area, then re-assemble. Drain the gassy oil and refill with new oil before running it anymore.Pull muffler off, Remove carbon from port More than likely the cause of your problem is probably due to foreign debris. Carbs don't just stop working unless something clogs them.
Did you remove the main jet and thoroughly clean it ? Were there any adjustment screws that you may have "adjusted accidently" during cleaning ? I prefer to soak my carb over night to allow sufficient cleaning. Dissemble carb as much as possible and soak ALL parts, blow clean with compressed air.
There are some "openings" that have nothing to do with gas flow, but allows atmospheric pressure to enter the carb. Get a can of car cleaner and blow them out. They too, are important.
If you want to learn more about carbs, you should purchase a generic small engine book that describes the "concept" behind carbs and how they work. I did, and I've never been happier.
