Garden

Experienced gardeners share their insights in answering this question :
Check your fuel lines those are the first things to go on those models if you still have trouble rebuild the carb. Go to smalleng.com and the will show you how. Good Luck! Don’t forget the thumbs.

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

My Petrol Strimmer/Brush Cutter will not idle Print

Fuel: Make sure it is fresh and correctly mixed (see `Starting Issues`). Air filter: Make sure it is clean and unclogged. Fuel cap: Make sure it`s hand-tight (not too tight or too loose). Carburettor: see below.

A gas trimmer`s engine may be faulty. The air filter or exhaust port may be blocked. The trimmer may need lubrication and cooling fins or air passages may be blocked. A cordless trimmer`s battery or charger may be faulty.
If your trimmer engine idles, but stalls on throttle, check the following parts: the gasket, primer bulb, fuel filter, air filter, fuel vent, fuel line, and carburetor. The repair and symptom guide will help you better identify the part needed to be replaced and how.
2 stroke won`t idle

Whether you have a 2 stroke or a 4 stroke, if the idle adjustment is set too low, the engine won`t stay running. Turn the idle screw in and see if your dirt bike stays running. You may have to turn the idle down slightly as the engine temperature warms up.

If the engine is running fast (revving high):

Make sure that the choke is disengaged and the throttle hold has been reset by pressing the trigger. You can check the throttle cable to make sure there are no kinks found in it – however this requires a mechanical proficiency to strip down the machine uncovering the cable.

Something could be blocking the cap, keeping the line from advancing. To inspect and replace, simply remove and clean out the bump cap housing of any debris that may be impacting its operation. If the cap is damaged, replace it. The cap allows you to feed more line when you tap it on the ground.
A worn, dirty, oily, or improperly gapped spark plug can cause a weakThe job of the spark plug is to ignite the air/fuel mixture. A worn, dirty, oily, or improperly gapped spark plug can cause a weak spark, which can misfire or detonate and cause a loss of power.
The clutch engages the clutch pads to spin the trimmer head. If the clutch assembly is defective, the clutch will not disengage the clutch pads, and the trimmer head will continue to spin, even at low speeds. If the clutch is defective, replace it.
Engine hunting and surging at idle is usually caused by a fuel delivery, air leak, or governor system problem. Cleaning/overhauling the carburettor, adjustment of the governor, and/or changing the air filer may be required.
If the line is too thick or too thin it can continuously feed the line. Make sure you are using the correct line thickness rated for your machine. The spool houses the line for the trimmer and has the line wound around it. It is located inside the trimmer head.
Charge only when needed and never overcharge The Trimmer.
You Lose Power in the Middle of Mowing:

Here`s why this happens and what you can do: Dirty Air Filter on Your Lawn Mower: Clean or replace. Dirty Spark Plug: Clean or replace. Build Up of Clippings & Debris: Clean underside of your lawn mower deck as noted above.

To keep things in simple terms, a grass trimmer is suited to trimming edges, hard to reach lawn areas, and providing finishing touches to lawns. On the other hand, brushcutters are designed to take on dense weeds, fibrous grass and areas of thick vegetation that a grass trimmer would struggle to cut.
Cable or Shaft

If the drive cable breaks or becomes detached, the saw blade will no longer spin. You can inspect the drive cable by removing the engine assembly from the shaft and checking to see if the cable is still in place. If the cable has slipped out of place, it will need to be reinstalled firmly.

If the drive shaft is broken or detached, the trimmer head will not spin. To inspect the drive shaft, remove the engine assembly from the shaft and look to see if the shaft is in its proper place. Re-install the shaft if it has slipped from its place. If the shaft is damaged or broken, it must be replaced.
Bump-feed string trimmers utilize a spring underneath the spool. When you tap or bump the head against the ground more line comes out. Automatic-feed string trimmers utilize an automatic-feeding system that pushes more line out whenever it gets too short.
With an auto feed system, the trimmer will release more line whenever it starts to run short, based on an advanced internal system. The majority of models will have some kind of component that gauges the current length of the line and then releases more by taking advantage of the spinning taking place with the head.
The idle air control valve enables the engine to idle smoothly rather than stall out while the vehicle is stopped. It will continue doing so until you step on the accelerator and the vehicle starts to move again. In gasoline engines, engine speed depends on airflow, which is controlled by the throttle body.
If the carburetor is new or has been rebuilt, you should set it to “factory” adjustment. You can do so by adjusting the idle mixture screws to 1.5-2 turns out, and the idle speed screw to 1-1.5 turns in. Warm the Engine Up. The engine`s running temperature directly correlates with proper air and fuel mixtures.
Idle speed is controlled by using an electronically controlled throttle bypass valve, as seen in Fig. 6.6, which allows air to flow around the throttle plate and produces the same effect as if the throttle had been slightly opened such that sufficient M . a flows to maintain engine operation.
Turn the idle screw to adjust the idle—turn the screw to the left to increase the RPM or to the right to lower it. When you have adjusted the idle—aim for 650 RPM—reconnect the idle air adjustment valve`s electrical connection. Lower the hood and turn your car off.
The clutch engages the clutch pads to spin the trimmer head. If the clutch assembly is defective, the clutch will not disengage the clutch pads, and the trimmer head will continue to spin, even at low speeds. If the clutch is defective, replace it. (Note: some string trimmers do not have a clutch.
The two most common reasons a chainsaw won`t idle are a blocked air filter and an idle screw out of adjustment. Other possible causes include: Dirty Air Filter. Idle Screw out of Adjustment.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

How do you know whether to use 50:1 or 40:1 gas/oil ratio mix in a 2 cycle engine ?
ANSWER : Should be written in the manual and on the lid if not i always run 40 to 1 better safe than sorry to much oil ratio can foul a plug running to light on oil can blow the motor

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How do i adjust the carburetor high and low mix on a weedeaterblower fb25..
ANSWER : Initial start adjustment is 1 full turn out on both low and high side.

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Idle goes up and down and the shuts off eventually
ANSWER : It sounds like the engine might be running too lean. You need to get someone to adjust the idle and high speed screws correctly.

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I have A briggs & stratton 300 engine. When I start the motor surges at idle and full throttle.
ANSWER : Needs a new diaphragm between the carb. and tank…..cost about 2-3 dollars…(remember how it goes back on, you have a rubber piece and a firm gasket piece…the rubber piece mounts on top of the gas tank first, then the gasket piece on top, then the carb., then mount the carb. in with the five screws..(blow out all the ports when it is disasembled.)

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How do i replace a spool on the weedeater xt110. I cannot seem to get the spool to release and I do not have the owner’s manual.
ANSWER : Just line up the two arrows across from each other to those on the the spool housing on the bottom of the spool. Then grip the bump knob and pull straight out. It takes a good grip and some force, but it usually gives way.

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The engine idles way too fast and will not correct with the sow speed adjustment
ANSWER : Make sure that you are adjusting the idle speed screw, not the idle jet screw (L). If you are adjusting the proper screw, then it is possible that the throttle trigger assembly in the handle has a load of sawdust/dirt that blocks proper return to idle. Take the handle apart carefully, and make notes on how the parts go back together. Check at the carburetor throttle assembly to make sure the throttle arm returns fully to the idle speed screw when the trigger is pulled and released slowly. Check the throttle spring as well to make sure it is undamaged. Hope this helps!

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What should the spark plug gap be on a weedeater trimmer 25cc
ANSWER : Set it at .025

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Hard to start, wont idle. – Craftsman 25cc Gas Line Trimmer
ANSWER : Hi o9sbornes1325…

Sounds like you have dirt/debris in your carburetor jets,fuel passages or a diaphgram that is becoming non-flexible.Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.Also check you fuel line condition after a while they will degrade and need replacment.Make sure you are getting spark at the spark plug, to do this:Remove your spark plug and check to be sure you are getting fire at the spark plug.You do this by grounding the plug on the head of the engine and pulling the crank rope, if you are getting spark then:Check/Clean/Replace your fuel filter if you have one, normally they are located in the fuel tank of weedeaters.When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines are connected to the carburetor.Normally the big line will be the line the fuel filter is connected to inside of the tank.The smaller of the two lines is the return to the fuel tank from the carburetor after it is pumped thru the carburetor by the primer bulb.Also make sure you are using fresh fuel…and oil mix if your using a two cycle mower or weedeater with the oil to the right mixture and not too much oil as it can cause hard starting.If the mower/weedeater is over a couple of years old, then I 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.Sounds like you will need to clean the carburetor or replace your carburetor internal rubber parts like the diaphgram and O rings.I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.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 (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit.When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.But before you lightly 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 lightly seat them first and then turn them back out to their orginal position before you started.Once you have your carburetor rebuilt that should solve your problem.
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My name is June Strandberg, and I am a florist and gardener in San Francisco. I have been working in the industry for five years, and I love helping people find the perfect floral arrangement for their special occasions. I am also skilled in troubleshooting and fixing gardening tools, so if you are ever having trouble with your tools, please don't hesitate to reach out to me.