wizardknight
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- Jun 11, 2011
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Help with Generac generator please - carb fixed now spark issues?
I inherited a generac 5000w generator model 09856-0. It has a briggs and stratton engine Model 19G412 Type 0129 01 Code 9511021A. Carb marked walbro 5-4993
The generator has not been ran in years, and would not start. I first swapped the plug, fuel, and air filters. Then I cleaned the carb with a can of cleaner. I found a lot of rust gunk in the bottom of the bowl. Everything looked very clean when I put it back together. When I tried to start it after a few pulls I got one little puff of smoke, and noticed fuel coming out the front of the carb air-filter side. I pulled the carb back off, cleaned it again thinking maybe I missed something. I put it back together with no fuel leaking I could see this time. I managed to get one puff of smoke again. I pulled the spark plug and found it wet. I then changed the oil, and found lots of gas in it. I am guessing the fuel went into the system rather than leaking out the front after the second clean.
I have never done a carb rebuild, and from what I am reading it looks like I should suspect the float, or the needle. The float does not have fuel in it, and seems air tight. It moves easily on the pin holding it in place. Due to lack of experience I do not know what a bad needle looks like, but this one has a rubberish tip that seems to have a little bit of a point and is orange in color.
I did reuse the gaskets, and they are not in the best shape in the world. I though they would be good enough for testing the unit. As far as I know a small air leak wouldn't cause this kind of fuel dump into the system, right?
I am between jobs right now so I am trying to avoid dumping a lot of money into this generator. Otherwise I would just buy a new carb for it.
I can get pics if someone tells me in simple terms what they want to see.
O'keepers of the wisdom, please tell me where I am screwing up so bad. :tongue:
Thanks.
I inherited a generac 5000w generator model 09856-0. It has a briggs and stratton engine Model 19G412 Type 0129 01 Code 9511021A. Carb marked walbro 5-4993
The generator has not been ran in years, and would not start. I first swapped the plug, fuel, and air filters. Then I cleaned the carb with a can of cleaner. I found a lot of rust gunk in the bottom of the bowl. Everything looked very clean when I put it back together. When I tried to start it after a few pulls I got one little puff of smoke, and noticed fuel coming out the front of the carb air-filter side. I pulled the carb back off, cleaned it again thinking maybe I missed something. I put it back together with no fuel leaking I could see this time. I managed to get one puff of smoke again. I pulled the spark plug and found it wet. I then changed the oil, and found lots of gas in it. I am guessing the fuel went into the system rather than leaking out the front after the second clean.
I have never done a carb rebuild, and from what I am reading it looks like I should suspect the float, or the needle. The float does not have fuel in it, and seems air tight. It moves easily on the pin holding it in place. Due to lack of experience I do not know what a bad needle looks like, but this one has a rubberish tip that seems to have a little bit of a point and is orange in color.
I did reuse the gaskets, and they are not in the best shape in the world. I though they would be good enough for testing the unit. As far as I know a small air leak wouldn't cause this kind of fuel dump into the system, right?
I am between jobs right now so I am trying to avoid dumping a lot of money into this generator. Otherwise I would just buy a new carb for it.
I can get pics if someone tells me in simple terms what they want to see.
O'keepers of the wisdom, please tell me where I am screwing up so bad. :tongue:
Thanks.
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