Chinese Trimmer Won’T Start

Petrol trimmer won’t start? Reasons and solutions on the example of Elitech T750 The gasoline garden trimmer is quite simple tool at first glance, because it contains a minimum number of components and is easy to use. But

Petrol trimmer won’t start? Elitech T750 Reasons and Solutions

In general, such a conversation should start with the fact that after buying a garden gasoline tool, it would be better to first familiarize yourself with the instructions attached to it. Then many problems could be avoided. But since this happened, the gasoline trimmer will not start, then we must look for sources of inoperability. And in this article we will look at the main reasons why the trimmer does not start on the example of the Elitech T750 model, as well as give general recommendations for using such a tool.

You should start with the banal! Let’s figure out how to properly start the gasoline trimmer. It may be that the reason lies precisely here.

First you need to bring the red toggle switch on the trim bar to position I. This means turning on the power. Then you need to switch the fuel supply lever on the carburetor and use the fuel suction button (similar to a pipette, located on the carburetor). This is necessary to supply gasoline to the engine. Return the fuel delivery lever to its original position. Finally, pull the starter handle sharply towards you. The trimmer should work. Try it several times if it doesn’t work the first time. If after such manipulations the situation has not changed and the gasoline trimmer does not start, then you should first inspect it yourself before you take it to the service center. There are two main reasons your garden trimmer won’t start:

  1. Disruption of the power supply circuit.
  2. No fuel.
  • Let’s start with the ignition problems. In most cases, it is caused by the need to change the spark plug in the engine. This is done like this:
  • First of all, we must take care of the safety measures, making sure that the trimmer is disabled. We bring the above toggle switch to the STOP position.
  • Then remove the rubber cover from the spark plug and the wiring terminal. Using a special spark plug wrench, we unscrew the spark plug and replace it.
  • After that, we assemble the device and carry out the above procedure for starting the trimmer.

The second reason why the garden tool does not work is out of fuel. On the Elinech T750, the fuel tank is located near the engine, but on most trimmers it is located there. We unscrew the cap from the tank and fill it with gasoline (the most optimal version of AI-92, it is inexpensive and does not clog the carburetor like the AI-76). Do not forget to add a special oil for engines to the tank, 50 grams is enough for the gas tank, without it the engine will start to sneeze and quickly become unusable. Then we close the tank with a cap, wipe the trimmer surface and our hands with a dry cloth. We also do the above manipulations to turn on the garden tool.

If the petrol trimmer still won’t start, then it makes sense to have it repaired. And the reason for such a decision is simple, if you do not have the appropriate skills, equipment repair is almost impossible.

In order for the tool to serve as long as possible and not to have such problems, you should first of all read the instruction manual for the trimmer. Also, pay special attention to the engine running time at the trimmer, take a short break every 15 minutes of work and, finally, take proper care of the tool, wipe it after work, lubricate it with graphite grease. Observing such simple rules, you can significantly increase the service life of the tool and it is quite possible that you do not have to look for reasons why the gasoline trimmer does not start.

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Is everything whole, clean, working?

Trying to adjust. We take a long screwdriver, find the idle speed adjustment bolt (it is located on the throttle valve), twist it a couple of turns so that the damper opens slightly. We start. Does it work smoothly? Then let’s move on. Won’t start or stall? Opens the damper until it starts up stably.

Next, adjust the quality of the mixture with screw L. It is necessary to achieve maximum idle speed. Here the principle is the opposite, the more the bolt is unscrewed, the richer the mixture. After that, the quality of the mixture is adjusted at maximum speed with screw H.

If the carburetor adjustment does not work, then it needs to be disassembled. Watch the membrane, clean the jets and internal passages. For this, it is necessary not only to have a repair kit, but also, preferably, a spare carburetor.

First candle

The first step is to unscrew the candle. If it is wet, the ignition system is faulty. Try to wipe off the spark plug, put it in the cap, attach it to the engine, pull with the starter. Is there a spark? If not, then you need to change the candle.

Replacing the spark plug didn’t help? Then you need to watch the magneto, cable, ignition coil. The cable is ringed, the coil is checked for resistance (the multimeter is in resistance measurement mode at 200 Ohms, one contact to ground, the other to the output of the coil, should show from 0.4 to 2 Ohms).
Sometimes the magnets on the flywheel get dirty, or the key is licked off, and the ignition moment flies away. Chinese shit throws up all sorts of surprises, but most of it can be revealed visually.

Be sure to pay attention to the plaque of the candle. If it is black, the candle is smoked, then the mixture is rich, or you have mixed the fuel incorrectly. If the plaque is white, it means that the mixture is poor, and the engine could already die of temperature. Ideally, the color should be brick, light, without much plaque.

Again, if the black candle is dead, you should not immediately sin on the carburetor and ignition. Screw in a new one, see what the plaque will be. Maybe the candle was just of poor quality.

Second carburetor

It is not necessary to disassemble the unit right away, especially if the engine stalls after starting or does not keep idling. Try changing the fuel first, it may contain an excess of oil. You can inject a purifier into the air filter, let the motor "shit" a little at maximum speed.

Next, we go in order the air filter, the fuel filter (it can be outside and in the tank), the fuel pumping button, the integrity of the hoses. The gas tank cap can be clogged with the ventilation valve, the motor simply does not pump gasoline. Blow everything out and it will work!

Be sure to look at the connection of the carburetor to the intake manifold! Elsi there sucks air and there is no tightness to eliminate!

The dosing needle hangs up is also a problem in some models. It is enough to push it down, or remove and grind it with velvet.

You can pull off the hose from the carburetor, see if fuel goes to it when pumping. It is clear that often to check it is necessary to remove the plastic sheathing, break your fingers on the latches, but anyway, sooner or later you will have to climb there.

Trimmer won’t start after winter

How to be in such a situation? Don’t worry and panic. This is a very common problem that can be solved in just 3-4 minutes. Firstly, if last year’s fuel remains in the gas tank, then it must be drained. Gasoline loses its octave properties after 2 weeks of inactivity. Secondly, you need to start a lawn mower after a long stagnation in a slightly different way. First you need to open the throttle and pump a little fuel mixture into the carburetor, then pull the handle until you feel a little resistance. Then you can start the trimmer.

Trimmer won’t start. Why?

A petrol trimmer is an amazingly useful thing that can be used to tidy up not only a miniature lawn in the backyard of the house, but also mow a lawn of considerable size without any extra hassle. But, like all things in this world, it tends to break. In this article, we will try to figure out what to do in cases where the trimmer refuses to work.

Petrol trimmer won’t start well

So what to do if the petrol trimmer won’t start well or won’t start at all? The most common reason for such a breakdown is poor quality fuel. Remember that, for example, trimmers of the Stihl and Husqvarna brands are unlikely to start on fuel quality lower than AI-92. You should not save on fuel, because repair of parts of the cylinder-piston group can be one third of the total cost of the scythe, and sometimes even half. Also, when preparing the fuel mixture, it is necessary to correctly observe the proportions of fuel and oil, which are always indicated in the instructions for the trimmer.

What to do if high-quality fuel is poured into the gas tank, there is a spark, but the tool still refuses to start? It is necessary to check the condition of the candle. It is located in the center of the mower body. It must be carefully unscrewed and make sure there is no plaque on it. If there is, then carefully clean the candle from carbon deposits and dry it.

If the lawn mower does not start even after the methods suggested above, then you need to try to remove the air filter and start the device without it. If the trimmer still doesn’t work, dust off the old filter or buy a new one.

It also happens that the mower works for a maximum of 5 minutes, and then stalls and does not start until it cools down. In this case, try to open the filler cap of the gasoline filler cap; a suction sound should appear. Then screw the cap back on. If you do this manipulation while the trimmer has just started to stall, then the speed will be restored, and you can continue to work. If the mower stalls before opening the lid, then you just need to start it as expected according to the instructions.

Trimmer won’t start

Chinese trimmer won't start

Like any technique, trimmers are subject to various breakdowns. Often at the beginning of the summer cottage, the owners of such a tool complain that the trimmer does not start, and it takes a long time to look for the cause of the malfunction.

For those who have recently purchased a trimmer and are still not familiar with this technique, it will be useful to know why the trimmer won’t start and what to do in this case. So let’s find out what might be causing this.

Petrol trimmer won’t start 10 possible reasons

Before attempting to adjust the operation of the tool yourself, carefully study the manual for its operation. Perhaps the information contained in it will push you to this or that thought. Otherwise, you will have to look for the cause of the malfunction by the selection method. It can be one of the following:

  1. The toggle switch on the boom is not in the On position. This is one of the simple steps, but sometimes beginners forget to turn on the tool before starting it.
  2. Lack of fuel in the tank also belongs to such errors. If you run out of fuel and you have forgotten about it, just fill the tank (usually located near the engine) with AI-92 gasoline.
  3. Lack, inappropriate mixture or proportion of engine oil. Ideally, no more than 50 g of oil should be added regularly. This will provide additional lubrication and keep your trimmer motor running. Also keep in mind that there are different types of oil (synthetics, semi-synthetics, mineral water), they all have different effects on the operation of the mechanism.
  4. If the trimmer mower does not start after winter, drain the remaining fuel in the gas tank and replace it with fresh fuel. This is especially true for small, low power trimmers with small motors that are sensitive to poor quality mix. In addition, during the winter, sediment may form at the bottom of the gas tank, due to which problems arise with the operation of the device.
  5. Excessive fuel pumping can also be one of the reasons that the trimmer stalled and will not start. When the choke is closed, the spark plug is flooded with fuel. It should be unscrewed and dried, and then inserted into its place and try to start the engine while holding the gas trigger. It is advisable to check it before that there is a spark between the electrodes. If there is no spark, the spark plug should be replaced.
  6. Filter problems. If your trimmer does not start well, remove the air filter and start the tool without it. If everything worked out, the filter should be replaced with a new one. As an option, thoroughly clean and blow out the old one, however, sooner or later you will have to make a replacement.
  7. Trimmer stalled and won’t start? Try to clean the so-called breather element designed to equalize the pressure in the gas tank. Cleaning can be done with a regular long needle. A clogged breather is often the cause of a malfunction.
  8. Knives removed from the machine, some models will not work under this condition.
  9. Violation of tightness. You can check this with a pressure gauge. If the pressure starts to drop, you should determine which part of the carburetor is faulty. Most often, the carburetor gasket wears out.
  10. Sometimes, after a long period of operation, you will notice that the trimmer is overheated and will not start. First, you should know to take breaks. The amount of continuous operation time recommended for this model should be indicated in the instructions. Also, the problem of overheating may lie in a faulty ignition coil or in the air cooling system, which prevents overheating.

If none of these steps work, you should contact a repair shop or service center.

Shtenli demon black pro

The Demon Black Pro universal trimmer handle allows you to steer your lawn mower with less effort. A wider handle is installed here, which promotes greater arm spread. Its length can be set for the specific height of the operator.

The trimmer frame is made of aluminum, which reduces the overall weight of the structure without compromising reliability. Shtenli lawn mowers are used on lawns near country houses, parks and golf courses.

First start

If you start working with Stanley brand trimmers, be sure to read the operating instructions in order to understand the principle of safe operation, the purpose of the levers and the rules of operation.

Initially, you need to make a fuel mixture for this, you should mix gasoline and oil in a 25: 1 ratio. The fuel must be high-octane, AI-92 or AI-95. It is recommended to use Stanley branded oil for two-stroke engines. It must comply with SAE 30 or SAE 10W-30 classification.

Then the engine should be run-in; for this, it is necessary to use the Shtenli trimmer at minimum speed during the first 8 hours. This period of time is enough for high-quality lubrication of all motor parts. This will reduce friction and fit all components into their grooves. At the end of the running-in, drain the remaining fuel mixture and refill with a new one.

Inspection of the lawn mowers gearbox and its lubrication

The gearbox must be checked on a regular basis before starting the petrol trimmer. Lack of lubrication or a small amount of it increases the friction of the gear transmission of the gearbox, which operates at rather high speeds. The result is overheating and gears. The lawn mower gearbox is out of order. To prevent the occurrence of such a breakdown during operation, regular inspection helps.

If it is detected, before starting the gasoline spit, an insufficient amount of lubricant in the gearbox or its absence, LITOL is put into the body. For this, it is necessary to unscrew the screw on the bend of the gear housing and sprinkle LITOL in the amount of 1-2 ml.

Starting the trimmer for the first time

When everything has been checked and the prepared fuel mixture is poured into the tank, the moment comes for the first start of the trimmer before running it in. To do this, you need to perform the following manipulations:

  1. Place the mower on a level, horizontal surface;
  2. Move the choke control lever to the closed position;
  3. We pump fuel into the carburetor with several strokes of the primer;
  4. Turn on the ignition switch;
  5. Smoothly pull out the starting cord until you feel resistance;
  6. Then make 34 sharp jerks with the cord until the lawn mower starts;
  7. After starting, open the air damper.

Preparing the correct fuel mixture

Before starting the running-in of the new engine of the lawn mowers, it is also necessary to properly prepare the fuel mixture. As is known for two-stroke engines, it is prepared from special two-stroke oil and gasoline, taken in certain ratios. You can find out the proportions from the instructions that came with the tool or on the lubricant label. From the instructions, you will also learn the recommended type of fuel, as well as the recommended type of engine oil.

When going to run in a new lawn mower, many are faced with a problem in preparing the fuel mixture. And the reason for this is the disagreement in the instructions of the tool manufacturer and in the instructions of the engine oil manufacturer. The former recommend a 1:25 ratio. The latter recommend 1:50. Whom to believe? How to proceed?

According to experts, if manufacturers write a ratio of 1:25 or 1:30 in the instructions for a lawn mower, then most likely this is either a cheap tool with poor cooling, or the manufacturer does not know what kind of oil the consumer will add. But here you need to understand that an excess of lubricant does not in the best way affect the performance of the trimmer. Excess oil does not completely burn out when the engine is running. It cokes, clogs the cylinder and piston.

How to deal with this situation when running in a new tool? The ideal option would be to purchase exactly the oil recommended by the lawn mower manufacturer. In the case of run-in engines, when it is not possible to purchase the recommended oil, it is best to purchase a good Husqvarna two-stroke oil for the gasoline-powered tool of the same name. It is not cheap, but it lasts for a long time. It is necessary to stir it as written in the instructions on the bank.