Question about Troy Bilt Tb70ss Gas Trimmer

1 Answer

Will start on choke position but will not continue to run in any other position

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Troy Master
  • 7,482 Answers

Sounds like you will need to clean the carburetor or replace your carburetor internal rubber parts like the diaphgram and O rings.
Be sure to use compressed air to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Sometimes you can get by with priming the carburetor or using starting fluid and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Keep in mind that the float for the carburetor must be level when you go to reassemble the carburetor or follow the instrucitons you get with the carburetor kit.
If the mower/weedeater is over a year old, then I also recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
When you clean your carburetor and remove the jet screws, you will first need to seat the jet screws.
But before you seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to seat them first and then turn them back out to their orginal position before you started.
This is a FREE answer,Please rate me

Posted on Oct 12, 2010

3 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 57 Answers

SOURCE: Stops when given full throttle

Most likely carburetor needs adjustment.

Posted on May 15, 2009

vincob
  • 718 Answers

SOURCE: TBSS70. Starts fine, will continue to

If you have not touched the idle screws and you have had this unit for a while, all you need to do is buy a carb kit for your carb model and rebuild the carb. Go to your local repair shop and give them the number off of your carb and they will sell you a kit for that model carb. Go to smalleng.com they have a video you can watch to learn how to accomplish this task or get on you tube you will find all sorts of tutorials there. Good Luck.. gbell the 3rd.

Posted on Apr 18, 2011

Testimonial: "Thought this might help. Was afraid to tackle this till I saw the video. I feel confident I can do this. Thanks Greg"

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why does it run only with the throttle in choke position?


Hi John:
Sounds like it's too lean.
Try backing out the high speed screw 1/2 turn at a time until you don't need the choke. Then tune the high speed with saw running at full throttle. Screw in (lean) until RPM starts to drop, then back out 1/3 to 1/2 turn. Then set low speed at idle so engine is smooth but chain does not turn.

Nov 30, 2015 | Garden

1 Answer

Just starting to use this spring, and having fuel starvation issues. I ran it this winter a couple times and it ran properly.


add a little carb cleaner to the gas and try letting it run on half choke for a while longer .

Mar 28, 2015 | Garden

1 Answer

How do I start a weedeater fb25?


Press primer bulb 6 times
Move throttle lever to start position
Move choke lever to full choke position
Pull starter rope sharply until engine attempts to start, but no more than 5 pulls.
Move choke lever to half choke position. Pull starter rope sharply engine runs. If engine hasn't started after 5 pulls, repeat all steps above.
After warming up for 10 seconds, move choke lever to run position.

Manuallib.com has a manual for this model available for free download

Oct 20, 2014 | Weedeater Garden

1 Answer

Sym red devil feels sluggish


Instructions
    • 1 Locate the red button on the top of the handlebars. This is called the "kill switch." When you pull it up the engine can run; when you push it down, the engine will shut off immediately.
    • 2 Pull the kill switch up.
    • 3 Turn the key to the "on" position.
    • 4 Make certain the cord running from the key is attached to the steering column. This device acts in the same manner as the kill switch - the engine will run only when it is secured.
    • 5 Pull the start cord, which looks like an enlarged lawnmower pull-cord and is generally found on the right side of the machine.
    • 6 Listen to the engine - if it starts, let it get going slowly . If it "pops" but does not continue to run, try pulling the start cord a few more times. If you do not hear the engine turn over at all, proceed to the next step.
    • 7 Find the pull tab under the right side of the handlebars. This is called the choke - it often has a circle with a diagonal line through it. The choke helps to start an engine when the weather is very cold or the machine hasn't been used in a while. When using the choke, try leaving it on only long enough to hear the engine fire a couple times, then return it to the "off" position. A choke left on too long can flood the engine.
    • 8 Place the choke in the vertical position - this is called the half choke position. Pull the start cord several times. If the engine fires up, place the choke back down to its original position and let it slowly warm up. If the engine still has trouble starting, proceed to the next step.
    • 9 Pull the choke 180 degrees from its original position - this is called the full choke. Pull the start cord until the engine sputters a couple times.
    • 10 Replace the choke to the original off position and continue to pull the cord. The engine should fire up and settle into a steady hum, ready for fun in the snow.

Jan 15, 2013 | Motorcycles

1 Answer

Sym red devil feels sluggish


Instructions
    • 1 Locate the red button on the top of the handlebars. This is called the "kill switch." When you pull it up the engine can run; when you push it down, the engine will shut off immediately.
    • 2 Pull the kill switch up.
    • 3 Turn the key to the "on" position.
    • 4 Make certain the cord running from the key is attached to the steering column. This device acts in the same manner as the kill switch - the engine will run only when it is secured.
    • 5 Pull the start cord, which looks like an enlarged lawnmower pull-cord and is generally found on the right side of the machine.
    • 6 Listen to the engine - if it starts, let it get going slowly . If it "pops" but does not continue to run, try pulling the start cord a few more times. If you do not hear the engine turn over at all, proceed to the next step.
    • 7 Find the pull tab under the right side of the handlebars. This is called the choke - it often has a circle with a diagonal line through it. The choke helps to start an engine when the weather is very cold or the machine hasn't been used in a while. When using the choke, try leaving it on only long enough to hear the engine fire a couple times, then return it to the "off" position. A choke left on too long can flood the engine.
    • 8 Place the choke in the vertical position - this is called the half choke position. Pull the start cord several times. If the engine fires up, place the choke back down to its original position and let it slowly warm up. If the engine still has trouble starting, proceed to the next step.
    • 9 Pull the choke 180 degrees from its original position - this is called the full choke. Pull the start cord until the engine sputters a couple times.
    • 10 Replace the choke to the original off position and continue to pull the cord. The engine should fire up and settle into a steady hum, ready for fun in the snow.

Jan 15, 2013 | 2008 Sym Jet Red Devil 50

1 Answer

2nd use of chainsaw pp3516avx, it won't start, choke lever will not stay extended. I followed the instructions to start and nothing works


The choke system is connected to the half throttle position, if you lift the throttle trigger the choke pull will automatically return, whilst trying to start do not lift the throttle trigger, the starting procedure is, pump the primer bulb as many times as it takes to 3/4 fill the bulb, pull the choke pull fully out, this will switch the saw on and engage the half throttle, crank the engine until it fires once, do not continue to pull,it will actually not run on full choke, if you do continue to crank with the choke fully out, you will very quickly flood the engine, now push the choke fully in, now crank the engine until it fires up, lift the throttle trigger once, this will dissengage the half throttle, and it should now come down to idle.

Mar 19, 2011 | Poulan Pro 16-Inch 38 cc Anti-Vibration...

1 Answer

Trimmer will only run in choke position


You have a few possibilities. Make sure you have good fresh gas in the tank. You're not getting enough gas, so choking helps get more gas than air, making it run better. Could be the carb diaphram (not very expensive if you replace yourself), when they get old they don't perform like they should. Could be the filter in the gas tank is bad, plugged. Also might be just an easy adjustment on the carb Low, and High speed screws. The choke has three positions, full choke, partial choke, and no choke, which means run position.

Apr 28, 2010 | Homelite Consumer Products 4.0 Amp, 13 In....

1 Answer

My ryobi cs26 will not continue to run after it starts when it is in the RUN position. To keep it running I have to leave the carburetor lever in the START position.


The reason you have to leave it in the start position is it is starving for fuel. Make sure fuel tank and lines are clean.Take a can of carb or choke cleaner and clean the carburetor out its probably gummed up inside. you will probably have to readjust the carburetor when done.

Mar 18, 2010 | Ryobi Garden

Not finding what you are looking for?
Troy Bilt Tb70ss Gas Trimmer Logo

Related Topics:

503 people viewed this question

Ask a Question

Usually answered in minutes!

Top Troy Garden Experts

Matt Olenzek
Matt Olenzek

Level 2 Expert

293 Answers

Mike Squire

Level 2 Expert

391 Answers

Tim Whalen

Level 3 Expert

3074 Answers

Are you a Troy Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...