Question about Troy Bilt Tb70ss Gas Trimmer

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Which way does the part with the little shaft that runs through it go over the needle valve with the spring on top? this is for the carburator on the tb2ocs troy-bilt trimmer. thanks! p.s i took out the screw and it flew everywhere before i could see how it went lol.

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Spring goes under the alloy metering lever(has small dimple to locate it), top end of the needle fits in the forked end of the lever and shaft and screw hold it all down.

Posted on Jun 20, 2009

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I have a Troy Tb110 model push mower and it is idling way to high, for the life of me I can't find idle screw, Is there a idle screw and where can I find it


on the far top right you see the spring that goes from the carburator to the metal frame? take a pair of needle nose pliers and bend it just a little to the carb. that will decrease the rpm level. it only takes a little to change the rpms.
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Aug 03, 2016 | Garden

1 Answer

Gas shooting out of rubber hose above carburator. craftsman lt200 with kohler engine.


If hose coming off carburator does not connect to anything then it is the over flow for carburator when float gets stuck and does not close needle valve causing excess fuel in carburator bowl and is drained automatically through vent orfice connected to hose that gas is dripping from. If this is the case then remove carburator bowl, check float, needle valve and o-ring in where needle valve goes. sometimes when carburators sit over winter with gas in them the gas breaks down and over time will gel/harden and cause float to hang up and o-ring for needle valve to deteriate and not sealing properly. clean and replace parts as nessesary.
I hope this helped.

Oct 26, 2011 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

I have an exmark hp yr 2000, 21hp kawa that's is hard to start due to carb is flooded visually when i take the air filter. and after it starts it runs exellent till i shut it off, when trying to...


You have a problem with your carburator.The problem is most likely the float, the needle valve ,or the needle valve seat. This isn't a difficult fix, you need to remove the fuel bowl under the carburator which is held in place buy a 1/2 inch bolt. There you will see your float, gently push up the float, it should be parallel with the upper section of the carburator. If not adjust float to make this happen. If float is off this is your problem, also float should not be full of gas, if so replace. If not we move on to the needle valve, remove pin that holds up your float and inspect your needle valve tip , if damaged replace. This could be your second problem,if not we move on to the third problem.The needle valve sits in a seat, it is about 1/4 inch round with a 1/32 inch hole in the center, top is flat, bottom is grooved. This seat can be removed with a pick tool. This problem can be fixed with carburator on the engine, but most of the time carburators are removed. You can do what ever you wish.
I believe the problem is with your float adjustment , you can fix this quick and get mowing again.
I am interested in how you make out. GOOD LUCK.

Aug 12, 2011 | kawasaki Fh641v 21hp 21 Hp Riding Lawn...

1 Answer

Where does the little spring go inside the carburator?


Hi loneoaktrail...

The little spring inside of the carburetor goes under the float arm.
That is where your fuel inlet needle/float valve is located...on the arm at the end.
Normally there is a small indetion in the carburetor base and a small protrusion on the underneath of the float arm where the spring will be in the right postion for installation.
The spring will set in the indention and you will install the float arm with the needle/float valve and float rod into position over top of the spring,you will push down until it is in position and then you can tighten the screw that holds the float arm assembly in position.
Your carburetor should be working properly to run now as long as you do not have other problems in the fuel system or electrical problems.
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Jun 18, 2011 | Ryobi 15" Electric Factory Reconditioned...

1 Answer

How does the spring on the needle valve attach to the float on a tecumseh carburator


It does not fasten firmly to the float. It has a squared wire section on the back end that fits right over the metal tang on the float. The tang moves up and down with the float , pushing the needle valve allowing or blocking fuel flow as bowl height varies.

Nov 23, 2010 | Health & Beauty

1 Answer

Gas flows from cutoff valve to carburator hose connection but does not flow into carburator. What is blocking the flow?


On the top of the carburator there is a needle valve, closed by the float lever. 
If the carburator chamber is full with gas, the valve is closed and no more gas can enter the chamber.

If the chamber is empty and no gas flows inside, the valve may be stuck in closed position. Cleaning or some sharp (but not very hard) knoks on chamber cover may help.

Some times the float gets broken and falls down. This is a bigger damage, because it may lead to carburator overflow.

Jul 19, 2010 | Coleman Powermate Premium Plus 6250W...

1 Answer

Gas began running out of the tube that exits the top of the carburator on the Yamaha TTR-50. So much gas that I had to use a gas can to put the excess gas into. It appeared to be leaking from the...


hi,sounds like the float in the carb is stuck in the fully open position,you will have to take the carb out,take the bowl off the bottom of the carb and inspect the float needle assembly,the little clip that holds the float to the needle valve may have come off,allowing fuel to run unchecked into the carb and ultimately out through the overflow..hope this helps..cheers

Mar 09, 2010 | 2003 Yamaha TT-R 125

2 Answers

Carburator problem,18 H.P Vangard V-Twin(350777-1113-E1)


it sounds like the needle valve is stuck open. This is connected to the float, and when the bowl gets low the float pulls this needle out of its seat and allows fuel to run in. Sometimes tapping on the bowl can resolve this. The needle is usually made of brass and can become corroded from water or from sitting or wintering over. if you take the bowl off you could also clean this up if tapping a little does not resolve the issue.

Apr 13, 2009 | Briggs & Stratton Briggs Stratton Vanguard...

4 Answers

I own a 2004 TTR-225-S and when we try to start it will not get any gas to flow to the carburator


remove fuel line from petcock and see if fuel runs out, if not remove petcock from tank and clean filter screen, if it does come out, check for inline fuel filter change it, if it dont have one check fuel pump if it has one, or could be diaphrams in carb split and not building vaccuum to draw gas thru

Apr 11, 2009 | 2004 Yamaha TT-R 225

1 Answer

Lawn boy mowers


check for stuck float in the float case youll find a small needle valve which is adjusted.. by the level of fuel when it raise the float the float lifts the neddle up to allow fuel to pass to the intake it may stuck..or check your governer on top of your fly wheel.. if your have a standered carburator with a pump,, that bolts to the side..similer to breggs and straton... their a spring and a short thin rod that opreates the govener..if the spring is streched or the thin rod is bent out it will cause the mower to run high speed....heres a idea,, you know a carbarator. makes a engin run fast or slow..it has to have something to adjust the speed on it..start their first..

Sep 29, 2008 | Garden

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