Question about Yard Machines 158cc Push Lawn Mower #11a 034f200

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Lawn mower dies when I take the choke off

I picked up an older model craftsamn mower that would not crank. i disassembled the carb and cleaned it. Now it will crank right up and continue to run on choke. When you take the choke off it dies. Help please.

John

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6 Suggested Answers

  • 166 Answers

SOURCE: Briggs & Stratton Quattro lawn mower

A lot of time when the small motors on these push mowers surge it is a governing spring that is weak or broke. It does not hold enough tension and causes the valve to fluctuate. I have fixed this many time for a relatively cheap amount (under $5).

Posted on Jun 16, 2009

  • 33 Answers

SOURCE: I can't start my

The carburetor jets are plugged. Complete disassembly & soaking in carburetor cleaner then re install parts after rinsing off & drying them. Make sure all ports are open. Torch tip cleaner is helpful.

Posted on Sep 10, 2009

  • 133 Answers

SOURCE: Runs with choke out.. dies if pushed in. Will only

Try rebuilding the carb. It might be your float is messed up. You can also get some carb and choke cleaner and take the sediment bowl of and clean everything in it. Give extra attention to the float and needle valve. They might have some build up that won't let it work properly.

Also your gas cap might not be venting properly.

Posted on Oct 10, 2009

flyer4play
  • 1 Answer

SOURCE: Yard machine 139cc will only run short time with choke

i have the same problem with my 139cc model, but no leaking gas. it just runs in choke on only.

uuuughhh!!!


Posted on Jun 10, 2010

SOURCE: I have a yard machine

Your carbs main jet is blocked. Using the primer supplements the fuel input and keeps the engine from becoming fuel starved.

You need to remove the main jet and run a strand of fine wire through the jet to clear it.

Posted on Aug 18, 2010

philwalker78
  • 602 Answers

SOURCE: 12.5 Briggs riding mower...I have fuel and spark but wont start...new plug, clean carb steps..fuel mix is comming out choke opening when I try to start.

Hi, check your valve clearances,if they are to tight you will have low compression and the noted fuel blow back in your carby, regards Phil.

Posted on Jun 14, 2012

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Feb 08, 2009 | Yard Machines 158cc Push Lawn Mower #11a...

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