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Posted on May 02, 2012
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Flymo 46s won't start. Starts to fire when turned

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Andrew White

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  • Briggs & Str... Master 2,239 Answers
  • Posted on May 03, 2012
Andrew White
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Possible blocked air filter, try as a test running the engine with filter removed, if ok replace with new filter.

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  • Posted on Sep 05, 2012
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Hi. Allan. S here

Older Flymo GL47 Tecumseh motor has two problems with carburetor which cause the motor to stop intermittently, and fail to restart and/or run properly.

1. The float valve gets stuck closed on old machines and this causes the engine to run lean, cut, and fail to restart.

Solution. replace the float valve needle AND the neoprene seat it works against - up in the carb body. Or bend the wire retaining clip attached to the float valve needle and check it pulls away properly from the seat.

2. The float-bowl sealing ring gets hard with age. Dirt then gets into the float chamber around the float-bowl sealing ring, blocks the main jet and the motor runs lean and stops.

Solution, clean the float bowl and jet. replace O-ring. Fit an in-line petrol filter.

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Anonymous

  • 246 Answers
  • Posted on May 11, 2009

SOURCE: hi I have a Honda

Hello Stuart:

From your Description it Sounds like the Carburetor Requires Soaking and Cleaning.
>>The Following is a Basic File I Made for Cleaning Carburetors. Any Input is Appreciated. Even though the Carburetor Looks Clean, the Internal Passages May be Restricted with Varnish that Gas Causes to Build Up over Time.
>>Spray Cleaners Remove this Varnish in Layers, so Soaking is the Only Sure Way to Remove ALL this Varnish.
>>I Suggest you Make Sure the Gas is Free Flowing to the Carburetor Inlet Port (if the Model does Not have a Fuel Pump). If the Gas is Free Flowing to the Inlet Port, then
>>**Remove, Disassemble and Soak the Carburetor Overnight in Carburetor Cleaner (I Use Gunk).
>>The Primer Bulb is Held in Place with a Locking Collar at the Base of the Primer Bulb. Use a Small Flat Screw Driver and Carefully Pry the Lock Ring Up in Small Amounts All Around the Lock Ring until the Lock Ring and Primer Bulb can be Removed from the Carburetor Body. Usually a New Primer Bulb is Required when you have to Soak the Carburetor. The Rubber is Usually Rotted to Much for the Primer to be Reused.
>>Your Primer Bulb May Differ Slightly, but Removal is Usually Almost the Same Except for the Primer Bulbs that are Bolted to the Carburetor. These are Simply Unbolted and Changed with the new Primer Bulb.
>>I have Found that Most People can Use a Breakdown/IPL and Disassemble the Carburetor Enough for Proper Cleaning.
>>You Only have to Remove the Bowl (if Applicable), Float Pin (if Applicable), Float (if Applicable), Needle Valve and Needle Valve Seat if Applicable. This is a Flat O-Ring Located in the Inlet Port the Float Needle Rests in. Use a Strong Wire with a Slight Bend to Remove the Old Seat. Sometimes a Small Pocket Screw Driver can be Use Also.
>>The New Seat will have a Slightly Beveled Side and a Flat Side. The Flat Side goes Towards the Carburetor Body when Inserted into the Inlet Port. Spray the Seat with Spray Lubricant to make Installation Easier. The End of a Drill Bit that is Slightly Small than the Seat can be Use as an Insertion Tool.
>>Wear Gloves or Use a Rag when Handling the Sharpened End of the Drill Bit. Remove Any Adjustment Screws that Go Into the Carburetor Body. The Welch Plugs Do Not have to be Removed.
>>If you are Able to Remove and Disassemble the Carburetor and Keep the Gaskets Intact, then Usually these Gaskets can be Reused. Even the O-Ring Around the Bowl can be Reused if it is Not Broken. The Only Parts you May Need to Replace is the Float Needle Valve (and Seat if Applicable).
>>The Float Needle Usually is Not Replaced Unless it is Not Operating Properly (the gas flow not shutting off and the carburetor is Flooding). Do Not Remove the Main Nozzle. This is a Pressed Fit and Removal is Not Required for Cleaning. Soaking and Blowing the Carburetor Out After Soaking will Clean the Nozzle.
>>Once Disassembled, then Soak the Carburetor Body and Parts in a 1 Gallon Can of Gunk Carburetor Cleaner Overnight. The Can has a Parts Tray Inside it for the Small Parts.
>>Once the Carburetor and Parts are in the Cleaner, you can Replace the Lid for Safety and to Prevent Accidental Spillage. Then Blow Out the Passages with Compressed Air.
>>***(Do Not Use High Pressure Air for the Zama Carburetors, they have Check Valves for the Primer and these are Usually Blown Out of the Carburetor if Not Careful. Allow the Zama Carburetor to Set on a Drip Pan and Dry)***.
>>****All the Carburetor Adjustments are the Same for Lawn Mower and Trimmers. There are Several Location for the Air Mixture Screws. The Idle Air Mixture Screws are Usually Located at the Top of the Carburetor Bowl and the Top of the Carburetor Body.****
>>If the Main Air and Idle Air Mixture Screws are Side by Side on the Side of the Carburetor, then the Idle Air is Nearest the Engine. The Main Jet Air Mixture Screw is Located in the Bottom of the Carburetor Bowl or Beside the Idle Air Screw on the Side of the Carburetor Body.
>>Some of the Older Model Carburetors have the Main Jet Mixture Screw Straight in from the Top of the Carburetor Body (this is Rare anymore). If you have Cleaned the Carburetor (Disassembled and Soaked Overnight in Carburetor Cleaner (I Use Gunk). Then Blow Out the Passages with Compressed Air and Install a New Kit if Required. Now Setting the Air Mixture Screws:
>>****Turn the Idle Air and Main Air Mixture Screws In Until SNUG **Do Not Jam** Then Reverse Both Screws 1 1/2 Turns. Holding the Throttle Full Open, Start the Engine. Turn the Main Air Mixture Screw Clockwise Until Proper Revs are Obtained. Occasionally you May have to Turn this Counter Clockwise to Achieve the Proper Revs. Now Allow the Engine to Idle. Set the Engine Idle Screw (Not Idle Air) so the Engine will Stay Running if Required. Now Set the Idle Air Mixture Screw so there is No Hesitation when Throttling from Idle to Full Throttle. Reset the Engine Idle if Required.****
>>If This Carburetor has a Single Air Adjustment (Except Tank Mounted 9200 and 100900 Engine Model Carburetors), Use the Section Above that Pertains to Full Throttle RPM Air Mixture Screw and then Adjust the Screw if Required to Eliminate Any Hesitation when Throttling from Idle to Full Throttle.
>>For the 9200 Model Tank Mounted Carburetor Adjust the Air Mixture Screw Full In, then Reverse 1 1/2 Turns. Set the Throttle Lever to Full Throttle and Start the Engine.
>>Now Carefully Use 1 Finger and Open the Throttle Plate and Over Rev the Engine Slightly. If the Engine Over Revs and Does Not Struggle to Over Rev, then the Carburetor is Set. If the Engine Struggles to Over Rev, then Turn the Adjustment Screw In 1/4 Turn and Repeat the Over Rev Test.
>>If you Adjust to 1/2 Turns In and the Engine Still Struggles to Over Rev, then Return the Adjustment Screw to 1 1/2 Turns Out from Snug and Turn the Screw Out 1/4 Turn. Do the Over Rev Test. Continue this Process Until you have the Engine Over Revving without Struggle.
>>By Adjusting the Carburetor on this Style Carburetor Until the Engine Over Revs without Struggle, you have Adjusted the Air Mixture to the Best Possible Setting.
>>This file was Intended to Give you the Basic Carburetor Cleaning Instructions and May Not Reflect Your Carburetor Components.
>>If you have Questions, Please Ask. The links above Provide Good Directions on Cleaning the Carburetor. Make sure you use an Compressed Air to Blow through all the Carburetor Passages to make sure they are Clear.
>>1- http://www.repairfaq.org/samnew/lmfaq/lmclctc.htm
>>2- http://www.cpdonline.com/692509.pdf .
>>You can View a Breakdown/IPL of the Mower/Engine at this Site Addy, http://hayward.arinet.com/scripts/EmpartISAPI.dll?MF&app=ASP&lang=EN&TF=Mainframe&LoginID=hywd&loginpwd=hywd&Partner=HYWD and Select the Catalog American Honda.
Please, Do Not Hesitate, If you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance.
Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Be Safe and Be Happy. Thanks.

Good Luck

Respectfully

jbridger (John)

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Anonymous

  • 216 Answers
  • Posted on Aug 29, 2009

SOURCE: flymo quicksilver 46s keeps cutting out

make sure button not cracked also fuel filter sits in bottom of tank get you a peice of coat hanger and fish it out just pulls off the end clean it good and also double check your carb sometime you can lose a gasket and it will cause similar issues? let me know if any of this helps ? can also tell you how to adjust high speed side of carb if all else fails?

Testimonial: "that was very usefull thank you"

Anonymous

  • 2 Answers
  • Posted on May 06, 2010

SOURCE: My flymo gl47 does not get up to max revs,any

you can adjust the rpm on the carb underneath the fuel tank

Anonymous

  • 144 Answers
  • Posted on Aug 05, 2010

SOURCE: 22 In Craftsman Self propelled.Starts

Oh my, that is so annoying. There is probably dirt in the carb. or the gas tank. What I think happens is, the dirt gets sucked up into the fuel line and clogs the carb, then when the mower sits for a while the dirt goes back into the tank for another couple minutes. I have absolutely no tolerance for this when it happens.

2strokeJim

2strokeJim

  • 577 Answers
  • Posted on May 16, 2011

SOURCE: Toro GTS 20332 (bought it 12 months ago) won't run

I believe that Toro Guarantees to start 1 Pull, was gas left in it all winter?, If so this is'nt covered under warranty, cause gas is to be ran out or dumped out at end of season this will prevent any gumming up of carb . did you completely disassemble carb? does it have a primer on it, those gskts need replacing, clean out the jet in bottum of float bowl,small holes,sometimes missed and remove and check your needle/seat to make sure that when float drops gas runs out then lift float up and gas should stop. hope this helped you,another thing spray carb cleaner in carb and pull over and see if it will start that way enough to keep running with choke to see if it will **** gas into it

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Flymo petrol mower starts but won't tick over.....keeps cutting out

Probably needs the carburetter cleaned out. Smell a lot of petrol? could be flooding out. Starts up but dies. No smell of excess petrol? Fuel line clogged at tank inlet, rust? Other crud? Gas gets to carb, engine starts then runs out of fuel. I dont know the flymo carb, but generally...
Start by removing the bowl under the carb, 2-3 screws. Youll need to remove the air filter box first. You should find a float tank which operates a needle valve. This can be released by popping out a pin pivot. DO NOT LOSE THE NEEDLE VALVE which will come out with it. A pointed stem which closes the fuel as the float rises. If you see a lot or just a little crud around here, that can be the problem. Clean it out with carb cleaner spraying up into the where the needle seats, also spray into every opening you see. Carefully replace the needle and float. The needle generally snaps into or is locked into the float loosely, then pin the float back in place while guiding the stem back into its hole. Replace the bowl and try to start it.
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Flymo quicksilver 46s keeps cutting out

make sure button not cracked also fuel filter sits in bottom of tank get you a peice of coat hanger and fish it out just pulls off the end clean it good and also double check your carb sometime you can lose a gasket and it will cause similar issues? let me know if any of this helps ? can also tell you how to adjust high speed side of carb if all else fails?
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