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Fuel jet location on Toro 6.75 149.cc

On the carb bowl theres 2 screws that r not the fuel jet bolt I think the fuel jet bolt is build into the hole carburetor and I cant remove it so I can clean it?

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Posted on Jan 02, 2017

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SOURCE: Toro 6.5 hp Mower Model

The linkage on the top of the carb should go to a spring loaded arm that goes into the side of the motor. Work the lever back and forth and see if it works the carb. If it does and everything is in place your governor mechanism inside the engine might be damaged.

If the arm isnt working the carb it is probably bound up or attached to the wrong hole in the carbs throttle lever. There should be two holes and one of them would force the throttle wide open everytime reguardless of what the governor arm tries to do.

Posted on Oct 11, 2010

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SOURCE: sstarts fine using sstarter fluid,but cannot prime

dirty jets inside the carb

Posted on Sep 29, 2012

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Why does my Toro GTS 6 hp lawnmower start then die?


Have you cleaned out the fuel jet ? if you have a fuel bowl on the bottom of your carb take it off and clean it out anbd look at the bolt that lolds the bowl on I could have little holes in it. This is the fuel jet and will not run if it is plugged.

Jun 22, 2014 | Toro Power Lawn Mower

1 Answer

Troy bilt 2550 max psi 2.3gpm pressure washer don't want to kick over


sounds like dirty carb jet. most pressure washers sit for long periods of time and many have the jet in the bottom of bowl where dirt and grime collect. depending on the model the bottom screw holding on the carb bowl is the jet. clamp or turn off the fuel to carb, unscrew the bolt out of the bottom of the bowl and look for a hole down the center and hole on either side under the bolt head. most likely these are plugged. you can take a strand out of a piece of #12 guage electrical wire and somewhat clean the holes well enough to shoot carb cleaner through them. once you clean out the hole going down to the holes going across and clean inside of bowl you can reassemble and should start. in the case of the jet being screwed into the carb assembly just look for a brass screw and unscrew it.and clean it. all jets are made of brass so look for a gold colored screw with flat blade tip screwdriver slot. if its plugged with dirt or old gas you found your problem.

Sep 20, 2011 | Troy-Bilt Garden

1 Answer

My toro recyler starts easily but dies after a few minutes. It seem to be starving for air or fuel.


If it's a Toro, then it probably has a Tecumseh engine and carburetor. Probably needs a good carb cleaning, but here's a tip for ya that you can perform yourself.. Take the bottom bolt out of the carb float bowl (the main jet) with a 1/2 inch wrench. At the very top of the threads on that bolt, there's a tiny tiny tiny hole you can barely see that gets plugged up. You'll need a very very very fine piece of wire to stick in it and unplug it (or perhaps a very thin sewing needle). then spray some carb cleaner in there and all over it. Also check the other two larger holes on it and spray and clean them as well. Perhaps this will help. Best of luck.
James

Aug 10, 2011 | Toro Power Lawn Mower

1 Answer

Hey i have and enduro 5 hp and it is a B**** to start but once it is running it good till you idel it down then it just dies


Hi and welcome to FixYa, I am Kelly,

Download this manual:
http://www.cpdonline.com/692509.pdf

First things first turn off the fuel selector if there is one.

See figure 10 on page 14. I think your going to have to remove the float bowl and the idle screw and use some carb cleaner in the idle screw hole. BEFORE you remove the idle screw turn it "clockwise: gently counting the number of turns until it just stops turning. (write it down as IDLE) DO NOT force it closed. Then remove the idle screw for cleaning. Also remove the main adjustment screw but loosening the nut ONLY that retains the float / fuel bowl. (do NOT turn the main fuel jet until after removal. Again count the number of turns it took for the jet to just stop turning. (Write that down as MAIN) Spray carb cleaner into the idle screw hole and into the threaded area where you removed the bowl nut / main fuel jet. What ever you do if your carb has any Welch plugs in it DO NOT remove them even if the manual tells you to do so.
One thing to check is that your carb mounting bolts are tight and that gaskets are in tact. The symptom your describing can be caused by a bad intake gasket also. It is ok to loosen the carb and slide it away from the head gently and inspect the gasket. DO NOT disconnect any linkages, just inspect the gasket.

After cleaning things up (jets) remove the fuel supply hose form the fuel inlet fitting and leave the float itself in the down position. Spray carb cleaner from the float needle are UP to the fuel inlet manifold. You are attempting to free any debris from the float needle seating area and flush it out through the fuel inlet. Usually you DO NOT have to remove the float and float needle to do this but there are exceptions when there is a large piece of debris in the float needle area. Usually if there is debris here the carb overflows. I do not think you have an overflow problem at this time.
Reconnect the main fuel line. Briefly turn ON the fuel selector and as fuel flows check that as you raise the float to level the fuel shuts off. Turn OFF the fuel selector. If you are not getting good fuel flow here inspect the fuel tank outlet port and fuel filter.
Reinstall the main fuel jet into the bowl nut until it is closed then turn it counter clockwise the number of turns you wrote down for MAIN. Reinstall the float / fuel bowl and main fuel jet but make sure the inner gasket that goes between the bowl and the bowl mounting nut is installed (2 ea usually one inside and one outside the bowl. Install the idle jet screw until it just closes and then turn it counter clockwise the number of turns you wrote down for IDLE.

If you have difficulty with mixture jet adjustments the pre-sets are on page 20 of the manual.
If you find that your going to have to completely tear down the carb and overhaul it the steps are in the same section just past the pre-sets.

Turn ON the fuel selector and attempt a start.

This usually fixes most Tecumseh carbs.

Let me know the outcome please. And if you need parts I can help you locate an on-line source but most lawn more repair shops will have overhaul kits for your engine. I will need your engine number to get you the right parts manual.

Thanks for choosing FixYa,
Kelly

Mar 28, 2011 | Tecumseh Enduro Horizontal Engine 5 HP...

1 Answer

My Toro Super Cycler ran fine all summer. No it starts and then stops immediately.


Remove the bolt that holds the bottom float bowl on the carburetor and clean it thoroughly. Careful, as it has an exterior washer between the head of the bolt and the bowl. Careful with the carb body gasket above the bowl also. The brass bolt is the main jet of the carb and if you are not using an inline fuel filter, debris, dirt, sediment and gum and varnish collect on it. There are very small holes in the bottom and along the smooth sides of the bolt. Use no metal on it at all. If you need to scrape on it, use wood or plastic.

Nov 16, 2010 | Toro Super Recycler Super Bagger Lawn...

1 Answer

I have 2005 toro 22' recyler with tecucmeh engine .it will start but won't stay running. the bowel is full of fuel,i even play around with the fuel jet screw.i spray every where i can carb. cleaner.


Remove the bolt that holds the bowl on (main jet) and carefully clean all the tiny holes in the bottom and sides with cleaner. Use no metal objects on this though.

Aug 13, 2010 | Toro Garden

1 Answer

No fuel to cylinder


The fuel flows throuth tiny holes in the brass bolt which serves as the metering device or "jet", the fuel flows up through the hollow center of the bolt where it mixes with air and is sucked into the intake manifold, through the intake valve and into the engine. I suspect the brass bolt's tiny hols are plugged or partially plugged.

May 25, 2010 | Toro Lawn Mower With Toro Power Tools

2 Answers

Mower will not start


Hi and welcome to FixYa. I am Kelly. Sounds like your in need of a serious carb cleaning session:

You engine parts manual is here: http://www.briggsandstratton.com/maint_repair/manual_and_more/docmanualdetails.aspx?showpdf=ms2143_B_LO.pdf

Now lets go through carb cleaning:

Before you start.... if you have a digital camera take "close up" PICTURES of the linkages and springs attaching to the carb. If this is your first time you will be so glad you did. You can always delete them later if you don't need them. :)

Here is what you need to do:

1. Fuel selector off
2. Remove float bowl mounting screws and nut
3. Localte the Air fuel Jet on the side of the carb and count the number of turns it takes to close the Jet adjustment until it is just snug.
4. Remove the Jet / Orifice in side of Carb (spring on screw stem)
5. Using a catch fuel container turn on the fuel selector. Fuel should flow at a good rate. GENTLY lift the float assy level and make sure fuel flow shuts off. When you drop the float again fuel should flow.
If you do not have fuel flow at this point the needle and seat will need to be inspected. Fuel selector OFF.
(The following procedure is to be done only if there is no fuel flow with fuel selector on.)
a. Remove the float pivot pin.
b. Drop the Float down (The needle will come off with the float. NOTE the position)
c. Inspect the tapered rubber of the needle valve It should be pointed. If it is not pointed then the rubber tip is stuck inside the seat.
d. Clean the seat hole ONLY if obstructed. (Easily damaged)
e. FUEL Selector on then off fuel should rapidly flow through the needle seat.
f. Renistall Float and needle making sure to get the pivot / hinge pin installed correctly
g. Fuel selector ON. Raise and lower float checking for free movement with fuel flow when lowered and stopped when the float is raised level.

6. If there still is no fuel flow at this point remove the fuel hose from the carb and check fuel flow. If no flow check that gas tank exit hole, fuel filter (if installed) and the selector valve assy for obstructions.

Reassemble connections.

FUEL FLOW IS GOOD

NOTE: If you have carb cleaner spray it into the side needle jet hole.

7. Install air fuel mixture needle jet in the side of the carb. Turn until closed and then back of the same number of turns it took to initially close it snug before removal.

8. BEFORE you install the float bowl inspect the bowl nut. There are holes in the side of the nut where it screws in to the bottom of the carb that must be clear. (could be no holes in yours)

9. Install Float bowl mounting screws and nut. Check for leaks.

10. Test engine.

That should do it.

NOTE: This engine was made with 2 different carbs. One had a choke the other had a primer bulb. If the primer bulb has a hole in it the engine will start then die after a few seconds.

Thanks for using FixYa.

Kelly

Apr 22, 2010 | Toro Lawn Mower With Toro Power Tools

1 Answer

6.5 hp on a sears string mower. statrs {at times} runs for about 30 sec to 1 min then quits. any ideas? fresh gas and float seems to work.


What your describing is typical fuel starvation. If there is a fuel filter bowl off of the tank or right where the fuel hose connectes to the carb manifold remover the filter bowl and or the manifold and clean them. Carbs with a fuel manifold have plastic screen inside the manifold itself that is no deeper than 1/4 inch. It is a microscreen that easily clogs just by doing its job. Also... the nut / bolt / cap screw that retains the carb fuel bowl has 2 holes in it that must be clear / clean in order for the engine to run properly. Remove the bolt and check the 2 holes for obstructions.
Once you have the feul bowl off of the carb remove the lower BRASS throat "jet" and check for obstructions. It will have screwdriver slots on both sides of the orfice hole. (CCW to remove it.) Once the jet has been removed there is yet another throttle tube UNDER / Above the Jet closer to the carb throat. It will be about 2.25 inches long. Remove that with a straight bladed screwdriver and clean it. Re-install the throat tube and the jet.
Before re-installing the float bowl turn on the fuel and drip the float to allow fuel to flow into something like an spray paint can lid until it is 3/4 full moving the float up and down while the fuel flows. This usually clears debris from the needle and seat areas. Then reinstall the carb float bowl and do a test run. Just for grins while the unit is running turn off the fuel if you have a fuel selector and see if the unit dies. Then turn the fuel back on after waiting about a minute and restart the unit.

This should resolve your fuel starvation issue unless there is something over the feul outlet hole in the fuel tank.

Thanks for using FixYa.

Kelly

Mar 21, 2010 | Garden

2 Answers

Totr model #20479 GTS 5 motor, when you push prime


Fuel Starvation - Float Bowl Carburetor
1) remove air filter assembly
*be cautious of tearing the mounting gasket. If it does tear, you HAVE to replace it. It is part of the priming system
2) remove the float bowl fastener. This is the main jet
3) carefully remove the float bowl, the rubber o-ring/gasket will not be able to be used if it is removed, you WILL have to replace it
4) using a spray 'carb cleaner'
spray up thru the center of the carburetor
spray and clean the main jet with cleaner and 'tag' wire
(tag wire is very thin, and can be used to clean the hole in the center of the main jet)
5) clean any debris from inside the bowl or carb body
6) re-install bowl and center bolt, air filter assembly

*if you need gaskets, your Briggs dealer can supply. The kit is cheaper than individual gaskets, and all the parts needed to finish the above repair are in the kit.

Nov 16, 2009 | Toro Lawn Mower With Toro Power Tools

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