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Problem with lawnmower

Can't get it started easily then can.t keep it running. Seems like a fuel shortage but cleaned carb and still no joy. Any ideas on tuning these machines etc?

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  • Master
  • 1,917 Answers

Check for low engine compression 99lb is bare min to start but not stay running

Posted on Jun 07, 2014

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6ya6ya
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Posted on Jan 02, 2017

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2strokeJim
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SOURCE: after the engine began hunting i cleaned out the

did you replace you diaphrams or just clean them, does it have a float bowl or just diaphram? sounds like during all you cleaning you did'nt adj the tab to the needle, therefore diaphram is not opening needle which is not giving gas to the carb. tab should be flush with carb body and when you push on it needle should move to open and let fuel in, good Luck

Posted on Apr 28, 2011

ImpalerCo
  • 13 Answers

SOURCE: Lawnmower starts but won't run-replaced airfilter and plug cleaned carb

If it is starting and not continuing to run it still sounds as though something is blocking the fuel flow. If the carb has been cleaned out, literally torn down and the needles cleaned so that no small debris is clogging them, check the fuel tank and lines for anything that could be restricting the flow to the engine. Remember that it's recommended that you replace the fuel line (cheap fix) when you dismantle the carb. Removing the line breaks off small pieces of the rubber in a worn line, which can re-block a freshly cleaned carb.

Posted on May 13, 2009

huffman49
  • 235 Answers

SOURCE: how do you tune the carb on a honda hr194 petrol lawnmower

most carbs just need to be rebuilt it's not a hard job but when your finished adjust the mixture screw out 1 full turn of the screwdriver. that will get it started then fine tune it from there....good luck

Posted on Apr 05, 2010

Knucklebstr
  • 222 Answers

SOURCE: On a Honda GV100 lawnmower

You need to clean or rebuild your carburetor. If you're so inclined to do it yourself, there are many great videos on youtube. Here's a good one that shows a Tecumseh carb, but they are all basically the same once you get them off the machine. The problem I have with the Honda's is aligning all the parts and gasket when putting them back on. Here's the link and you can search for more. As I said, there are plenty of videos, and once you do one, successfully, you'll get the hang of it. Otherwise, take it to a professional for a good cleaning. Best of luck.
http://www.youtube.com/watch?v=i0JfCPxY3po

Posted on Jul 02, 2011

Knucklebstr
  • 222 Answers

SOURCE: honda lawnmower GXV 140

I have a similar Honda (with the overhead valves) that someone gave me because it didn't run at all. Turns out it had a stuck open exhaust valve. I got it unstuck and changed the oil. After running it about an hour, the valve stuck again. I think this is an inherent problem with these engines. I cleaned up the valves really well and lubricated them. Then I put a high quality synthetic (actually motorcycle racing) oil in it and have been running it for a year now with no problems. Not sure what your issue is, but with stuff blowing out of the exhaust and loss of power, I'd pull the valve cover off (prop up the front of the mower and you can do this without losing any oil). Check your valves and give them a good cleaning. They may not be seating properly, which would cause the symptoms you describe. I'm just an amateur, but I'm learning every day! Hope this helps and best of luck to you Lou.
James

Posted on Nov 01, 2011

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did you replace you diaphrams or just clean them, does it have a float bowl or just diaphram? sounds like during all you cleaning you did'nt adj the tab to the needle, therefore diaphram is not opening needle which is not giving gas to the carb. tab should be flush with carb body and when you push on it needle should move to open and let fuel in, good Luck

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If it is starting and not continuing to run it still sounds as though something is blocking the fuel flow. If the carb has been cleaned out, literally torn down and the needles cleaned so that no small debris is clogging them, check the fuel tank and lines for anything that could be restricting the flow to the engine. Remember that it's recommended that you replace the fuel line (cheap fix) when you dismantle the carb. Removing the line breaks off small pieces of the rubber in a worn line, which can re-block a freshly cleaned carb.

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