I have 1999 Generac generator Mdl PP5000T which is powered by a Tecumseh 10 HP HM-100 159436P engine with a 12 VDC electric start. It has served me well over the years as power outage backup here in the north east. I have never really had any problems with it until this year. I live in upstate NY and this winter has been especially cold the coldest I've seen in a number of years in fact. I normally run it once a month just to keep things working, however this past winter I have had a hard time starting it in very cold temps, in fact the starter gasped it's last breath trying to start it. In also own a Yard Man snow thrower, which is also powered by a Tecumseh 10 HP HMSK 100 Snow King engine. The snow thrower has never given me a days trouble starting even on the coldest of days. On this particular engine however the carb has a priming bulb, aside from this the engines look almost identical at least to me. FYI, I removed and cleaned the carb, checked and reset the solid state ignition spacing, replaced the spark plug and put fresh gas in tank. I was wondering if replacing the HM100 carb P/N [B]640129 [/B]with the HMSK carb P/N [B]632370A[/B] would eliminate the cold temp start problem? It seems like the priming bulb on the Snow King engine is the key to starting in very cold temps, or am I being simplistic in my assumption? Any thoughts or suggestions regarding a solution to the hard start in cold temp condition would be appreciated. Thanks to all, Bill

It's an ~10 year old craftsman 24" two stage with a tecumseh motor. Checked it out and everything seemed to work fine when I was there, but since getting it home, the following has happened: * Was trying to cut into some fairly deep snow and the motor bogged out and stalled, wouldn't start back up * in the process of trying to pull the rope, it snapped * let it sit a couple days, after which it starts back up (electric start), but was backfiring and eventually stalled * Tried turning the choke open, loosening the gas cap, etc....no luck * Noticed just today that it stalled out as soon as I opened the choke He claims he got it from a guy that accidentally filled it with water, but he cleaned the carb up and it was fine I also noticed that he started it up without the choke while I was there. What could be the issue on this?