Question about Troy Bilt Tb70ss Gas Trimmer

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Weedeater will start and run at idle speed, as soon as you gice it throttle, it will cut off. Also what is the Carb settings for this mower. Thanks for you help. Hambone

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6 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

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Posted on Jan 02, 2017

smartr10U
  • 1305 Answers

SOURCE: weedeater starsts and ildes won't run or accelerate

Make sure your gas supply is fresh...not from last year...
Secondly, clean and service the air filter element... you may need to reoil it before installation...check your manual.
Disconnect the fuel line and drain it and what little is in the carb...push on the prime bulb if it's got one...
Then with a clean air filter and fresh gas... give it a start and after start, disengage the choke..
Let me know how you do..
K

Posted on May 28, 2009

#1 Taper
  • 1040 Answers

SOURCE: Troy-Bilt TB75SS 31cc string trimmer dies when given throttle.

Your carburetor needs cleaned. Disassemble carb. and spray with carb. cleaner. Make sure that the small screen is free of debris. Use a Den Tek Brush,
(http://www.dentek.com/shop.php?target=products&product_id=7), to clean the small portals in the carb. Reassemble and start. If this doesn't work for you then you will have to buy a carb. kit and replace all appropriate parts. If you need further assistance, just let me know.

Jim

Posted on Jun 08, 2009

  • 81 Answers

SOURCE: weed eater will idle but shutdown upon giving gas

Cleaning the screen on the muffler will help but the muffler itself is what needs burned out. This can be done with a fire or a torch. Let the muffler cool on it's own as use of water can warp it. Parts can usually be purchased at any small engine repair shop that represents Mtd. That's who make the weed eater.

Posted on Jun 22, 2009

2strokeJim
  • 577 Answers

SOURCE: I have a TroyBilt trimmer Model TB25CS 2 cycle. I

first remove your muffler and check to see if screen is plugged in exhaust..this will cause it not to rev. Also if you rebuilt your carb you neglected to pull your jets out and flush them out, pull both caps off adj screws with small screwdriver and try to adj "H" turn counterclockwise 1/8to 1/4 turn and see if it improves any if so keep turning till rpms start to slow back down then slowly turn back clockwise just till on edge of rpms speeding back up ,also did you change your fuel filter? hope this helps you!







'"

Posted on Apr 14, 2011

rycgl
  • 1545 Answers

SOURCE: I have a craftsman 32cc

The motor dies because it is "going Lean" at that point and not receiving the influx of fuel it needs to throttle up. A couple of elementary things cause this. 1. The fuel pump diaphragm inside the carburetor is not functioning properly due to losing its flexibility. 2. The carburetor L mixture screw needs adjusting.When you open that throttle you are telling the carb, OK. playtimes over, let's go. The carb is supposed to respond with fuel from the L (idle) circuit and the H (high speed circuit) mixture areas. It dies "lean" because the fuel from the carb isn't getting to the main jet or it is insufficient quantity, because the L speed circuit is NOT contributing enough fuel
So adjust the L screw (one closest to the engine) on the carb OUT 1/8 to 1/4 of a turn. Unconventional heads on thes carbs require special tools or a little ingenuity to get ahold of them.
You may need to install a basic gasket and diaphragm kit in the carb to restore the functionality of the fuel pump and the fuel control system. Here is a carb adjustment tutorial.

http://www.zamacarb.com/tipspage.html

Posted on Jul 21, 2011

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