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Carburetor blocked 20444 mower was sitting long time . wax/ varnish in carburetor. cleaned so gas flows into bowl , bu its not getting up through carb. Is the bolt that holds the bowl on supposed to deliver gas though it up into the cavity below venturi? there are two holes up there. on e that goes traight up into the venturi, where dows the other go?

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  • Anonymous Apr 11, 2009

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My riding mower runs but feels like it looses power


Not getting enough gas. Check your fuel filter or perhaps a gummed up carburetor. If you leave gas in unit over a period of time and it's in a warm garage, the gas will turn to a gummy varnish like goo. Will restrict gas getting through carburetor. Remove carburetor and then the bowl on the bottom of it and clean all parts with a can of carb spray. Put it back together and if all went well, it will now run as it should.

Aug 15, 2014 | Garden

1 Answer

Lawnmower carburetor problem.


Remove carb float bowl. Check float operation. Float down gas flow, float up no gas flow. Clean float bowl. Observe bowl screw, see if there is a hole or holes thru the screw. Clean out with thin wire, bread wrapper works peeled back about an inch. Use wire to clean out center port of carb. Remove mounting pin of float, remove float and meter needle, clean out port up thru carb with wire. Reassemble try to start. Prime at least 3 times, ensure primer bulb is not cracked, replace if cracked. Replace air filter if dirty. Replace spark plug once a year. Fill oil. 30w. Mowers now have a low oil cutoff.

Jun 14, 2013 | Garden

1 Answer

I have a Toro 20462 power mower -- about 15 years old, but until just today still running great! The spark plug is good, the gas is good, the oil is good the air filter is good. After priming, it starts...


Remove and clean the brass bolt that holds the float bowl on the carburetor. Clean out the bowl too. Use no metal objects to clean this bolt. It has 3 small holes...bottom...and on the sides near the top. Use carb/choke aerosol spray cleaner on it. IT can clog (esp. without an inline fuel filter on mower). Clean the bolt good, reinstall (not forgettting felt gasket between IT and the bowl) and your runnability problem and fuel flow problem should be solved as the bolt is also the main jet of the carburetor.

Sep 11, 2011 | Toro Power Lawn Mower

2 Answers

HI there, I got a lawn mower mtd yard machine briggs ans stratton 4,5 hp, it start pretty well but won't stay running, I change the spark plug, oil, gas brand new, clean the carburator, clean the air...


There could well be a build up of sediment and debris in the main jet to the carburetor. It is easy to get to and clean. It is the brass bolt that holds the lower float bowl onto the main body of the carburetor. To clean it, drain your gas. Remove the bolt and external washer UNDER the carburetor bowl. Clean out the bowl of any sediment and/or water. To clean the brass bolt, use no metal objects. Carb/Choke aerosol spray cleaner will do the job. Pay close attention to the hole in the bottom of the bolt and the very small holes about 2/3 of the way up the bolt. Clean till shiny with holes cleared and reinstall. Your fuel flow problem and shut off condition may be solved.

Jun 05, 2011 | Mtd 22" Yard Machine Push Mower

1 Answer

I have a craftsman lawn mower with a 6.5 engine its only been used a couple of time its like brand new I cant find the primer button and it acts like its not getting the gas it has been in a garage for a...


The owners manual is here:
http://www.managemylife.com/mmh/lis_pdf/OWNM/L0090093.pdf
or here:
http://www.hammerwall.com/Download_Manual/38456

A mower that has sat unused for 2 years will have dried gas in the fuel system that will need to be cleaned out of the carburetor and fuel jets with carb cleaner. The bottom of the carb. will have to be removed to tidy / clean up the carb passages. It is important to spary carb cleaner in the threaded area of the float bowl nut as that is where the main fuel jet is located. You should check for good fuel flow from the tank to the carb while the float bowl is removed. Poor fuel flow with bowl removed can be a clogged fuel filter, or fuel tank exit port. This is not a hard task it is just you have to pay attention to where hardware attached along with the gaskets for that hardware.

Two more things you must do is to make sure that the engine is fully serviced with oil and that the safety handle bar is actually moving far enough to dis-engage the flywheel brake safety / ignition switch.

I am pretty sure with a little carb cleaning and fuel purging your mower will be fine. Fuel turns into shellac / varnish substance over a couple of years of sitting idle and you just need to get that cleaned out of the fuel system.

Thanks for choosing FixYa,
Kelly

May 30, 2011 | Craftsman Garden

1 Answer

Yard machine 139cc ohv. wont turn over. cleaned carb and bowl. bowl gets gas but gas wont get into carb . think poss vacuum problem


Clean the brass bolt very well that holds the bowl on the carb. Pay very close attention as their are some very small holes in the smooth part of the bolt near the top, as well as the bottom. Use NO metal objects to clean this bolt.It is the main jet of the carburetor also. Once cleaned properly, your fuel flow into carburetor and engine should be restored.

May 24, 2011 | Yard Machines 11A54MC006 21Inch 139cc MTD...

1 Answer

B&S 875 mounted on Troy Built Pressure washer: fuel leaks with throttle off - no fuel shutoff valve on this model. Only 1 year old. Always stored at room temp in insulated shed. Any ideas?


I am going to assume that the fuel is leaking from the air filter area....coming out the front of the carburetor or out of the primer bulb. This is an indication that the float in the carb is not closing off the fuel internally in the carb. Most of the time this is caused by storing the unit with gasoline in it. Gas will turn thick and varnish the inside of your carb in as little as 90 days. The carb will need to be cleaned. Usually this is done by removing the carb and cleaning it with an aerosol carb cleaner. Sometimes you can get by with just removing the bowl from the bottom of the carb and lightly spray clean the float pivot area, the inside of the bowl, and the brass jet that hold the bowl on. The float should pivot freely and pushes up on a needle valve that closes off the fuel flow.

To prevent this in the future, use a fuel stabilizer in your gasoline. Or, when you are done using the equipment, run it until all the fuel is gone.

Your Troybilt unit is probably covered by a 2 year warranty, but old varnished fuel in the carb would probably not be covered.

Good luck!

Nov 30, 2010 | Briggs & Stratton 190cc 875 Series OHV...

2 Answers

Troy bilt lawnmower not starting


In most cases it's not enough to just dump the gas out of the float bowl. The problem is that the gas has turned to varnish and varnish is sticky. It will put a nice coating over all the the interior of the carb. The only way to clean it is to dismantle it completely. This means removing the float bowl and float. Along with the needle.The important thing is that both the float and needle move freely and both the high and low idle screws are clean. Depending on the type of fuel filter you may also need to remove and clean it as well. If it is not an inline filter it most likely is located inside the tank. As long as your careful not to tear the float bowl gasket you shouldn't require a rebuild kit for the carb.
Hope this helps.

Sep 16, 2009 | Troy Bilt 5.5hp Self Propelled Mower

2 Answers

My mcculloch Macpower pac 800E generator won't start. It had been stored for a long time.


The carb is dirty (varnished) from gas sitting in it. You will need to drain the carb and use carb cleaner to remove the old varnish left in it.

Jun 07, 2009 | McCulloch 13HP 338 Cc Portable Generator #...

1 Answer

Toro Model # 20331 Starts, but doesn't run


Mr. Fixit...excellent advisement...really appreciate it. It got my grass cut today. Big yard! Problem is, when I finished, now I have the same problem with it not running...what do you think: take the Toro to the junk yard or what? Thanks!

Apr 25, 2009 | Toro Lawn Mower With Toro Power Tools

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