I have a used Troy Bilt Tiller/edger, Model #12097 - It will occasionally start but won't continue to run. I cleaned the carb and it seemed to help some at first. When I give it gas it just stalls out and dies! I can spray the carb cleaner in the carb and it will fire right up (running on the carb cleaner) and then dies. I replaced the plug and used fresh gas mixed accordingly. I just ordered a brand new carb for it and am waiting for it to come in. Is there anything else I should be looking for here. Any pointers on installing the new carb? It also seems like there may be a spring missing? It has one small spring on it but it just seems there should be another spring on the throttle return? Like there's no spring on the carb butterfly? Lost here! :) Steve

Hello all, this might get long winded from me My first new piece of yard equipment - ever - I bought last year at the end of mowing season. It is/was a cheapo TroyBilt string trimmer (I will get model numbers when I get it back). It has been used probably less than 15 hours or so. Last year while doing a long stretch of trimming it just died and would not restart. I let it sit overnight and the next day it ran just fine. This year I gassed it up, it started first or second pull and runs just fine. Again using it during a long stretch of trimming it died and would not restart. I thought 'wow, I have something with a warranty' so I took it to the shop. I was out of town but was left a message saying they had looked at my trimmer and noted the tank was empty (yes, I emptied the gas before I put it in the car) but when they pulled the spark plug it was white and when they pulled the muffler the cylinder and piston were scored so they were figuring the gas had no oil in it so the trimmer overheated so it is not covered under factory warranty. Oh, said the compression was around 60 psi as well. I have no reason to doubt their findings but strongly disagree with their assumption. I have several other pieces of 2 cycle yard equipment running just fine after being fueled from the same gas can of fresh gas mixed with that 2 cycle ' pro mix ' oil from lowes. I guess my question / thoughts are: Has anyone had experience with using Pro Mix? Could the reason the engine overheated be because being so new and I imagine so lean from the factory? I am just at a loss and want to know why this happened so if anyone has any ideas I would love to brainstorm!