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+--- Thread: Lawnmower Needs Work—Carburetor? (/showthread.php?tid=166736)
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Lawnmower Needs Work—Carburetor? - mrlynn - 04-29-2014
My little 22" push Poulan was running rough at the end of the season last year. Now that the grass is (finally!) starting to grow, I started my regular beginning-of-season prep: sharpen blade, clean air filter sponge, change oil, and new spark plug. I pulled the plug, and see that it's black with carbon. So it was running rich, I think. This is a Briggs and Stratton 500-series engine. I don't think there are any adjustments on the carburetor (these new-fangled, regulated engines don't even have a throttle!), so I assume it's either take it apart and clean it, or just get a replacement. Are they available?
Or could it be valves?
Advice welcome.
/Mr Lynn
Re: Lawnmower Needs Work—Carburetor? - OWC Jamie - 04-29-2014
does the air filter look like seed starting medium ?
likely gummed carb
although the carb in my 026PRO was corroded beyond wasting time trying to clean it.
Still have the little thing here somewhere - insides looked like someone dunked it in the Atlantic.
darn ethanol. ( my fault for keeping a tank of it too long )
Re: Lawnmower Needs Work—Carburetor? - PeterW - 04-29-2014
Put it all back together and see if it's still running rough. A dirty air filter is enough to cause a rich condition.
Re: Lawnmower Needs Work—Carburetor? - GuyGene - 04-29-2014
Do a YouTube search on how to repair it. I had same problem couple years ago, best video I found was done by a 12 year old boy! All the pros talked over my haid (ain't hard to do), but the kid helped me fix mine!
Re: Lawnmower Needs Work—Carburetor? - DRR - 04-29-2014
See how it runs without the air filter. I tend to suspect clogged filter also. Filter wasn't wet, was it?
Re: Lawnmower Needs Work—Carburetor? - Grateful11 - 04-29-2014
billb wrote:
does the air filter look like seed starting medium ?
likely gummed carb
although the carb in my 026PRO was corroded beyond wasting time trying to clean it.
Still have the little thing here somewhere - insides looked like someone dunked it in the Atlantic.
darn ethanol. ( my fault for keeping a tank of it too long )
Bill if you find that 026 don't toss it I might be interested in it.
Re: Lawnmower Needs Work—Carburetor? - mrlynn - 04-29-2014
DRR wrote:
See how it runs without the air filter. I tend to suspect clogged filter also. Filter wasn't wet, was it?
Good idea. Filter uses oil-soaked sponge, so is normally 'wet'.
/Mr Lynn
Re: Lawnmower Needs Work—Carburetor? - Grateful11 - 04-29-2014
Mr. Lynn if you clean and oil your foam filter I'm going to tell you a neat little trick that won't leave your
hands so messy.
Wash and dry the filter, put it in a ziploc bag, put a small amount oil in the bag with the filter, zip it up,
squish it around throughly and naturally remove filter and install.
Re: Lawnmower Needs Work—Carburetor? - OWC Jamie - 04-29-2014
Grateful11 wrote:
[quote=billb]
does the air filter look like seed starting medium ?
likely gummed carb
although the carb in my 026PRO was corroded beyond wasting time trying to clean it.
Still have the little thing here somewhere - insides looked like someone dunked it in the Atlantic.
darn ethanol. ( my fault for keeping a tank of it too long )
Bill if you find that 026PRO don't toss it I might be interested in it. Ha!
I guess I should have added I bought a new carb for it and it's running like new.
Cut 9 cord of firewood with it this last Winter.
( I still have the corroded carb somewhere )
Re: Lawnmower Needs Work—Carburetor? - mrlynn - 04-29-2014
Took the air filter off, put some gas in the tank, but it wouldn't even fire. Then, it's only 44º F outside, and this mower never liked cold weather.
Cloudy and 44º. As T. S. Eliot said, "April is the cruelest month." At least it's not snowing. . .
/Mr Lynn