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Could be a lot of reasons why it wont start
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Remove the air filter and spray carburetor cleaner into the intake. Let it sit for several minutes to help loosen and dissolve varnish. Replace the filter and try starting the trimmer. If this doesn`t solve the problem, consider disassembling the carburetor to give it a more thorough cleaning.
The most common problem with a string trimmer is that the unit runs out of string. The string may also be twisted or loose on the spool. The cutting head may be dirty or the head outlet guide may be bent. An electric trimmer`s power cord, switch, or motor may fail.
A blocked or dirty fuel filter
You need air for your initial spark – and if oxygen cannot move readily through the system you will have problems both starting and keeping your whipper snipper running. Wash the air filter in soap and hot water, then allow to air-dry.
Turn on the ignition switch and pull the starting cord quickly. You should see a spark in the plug gap. Since the spark may be faint, it may help to do the test in a dark area. If there is no spark, check for a broken or shorted (bare) lead wire or bad switch.
If your 2-stroke brushcutter fails to start, the simplest explanation is that there is not enough fuel: in this case you simply need to top it up. A 2-stroke brushcutter engine runs on fuel/oil mixture, which you can buy ready prepared, such as EFCO-Mix Alkilate alkylated mixture in a 5 L can.
If your trimmer won`t turn on, especially if it has not been used recently, you may simply have a drained battery. Plug your trimmer into your charger and see if anything happens. Ideally your trimmer will recognize it has been connected to a power source and charge its battery.
All Weed Eater brand two-cycle gas trimmers use a 40:1 ratio of gas to oil. That`s equal to 3.2 ounces of oil to 1 gallon of regular gas. The gas should be 87 octane with no more than 10 percent alcohol.
The fuel filter might be clogged. A clogged fuel filter is most commonly caused by leaving old fuel in the hedge trimmer. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the fuel filter and prevent the engine from starting.
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My weed eater hedge trimmer runs for about 10 minutes and cuts off. It seems as though it is flooded, because it won’t start again until some time later. But it continues with the same pattern. I purchased a can of premixed gas/oil to make sure it was my mixture, to no avail. I have not replaced the spark plug yet, but I don’t think that has anything to do with it. Do you have any suggestions?
The plug can be the problem but also the air mix as well get the best plug you can
Do you know what the proper Champion part number is for a Toro 51972 weed trimmer is? This was purchased used and it had a RCJ4 Champion plug in it and I just need to verify that this is the correct plug. The trimmer won’t start and I want to start there with trying to solve the problem.
That is the correct spark plug for the unit. i work at a power equipment store where we work on homelites. 90% of the time it wont start or run right is usually carb issues . need to get it rebuild or replaced
Ball will not prime
You can check the filter in the tank just blow the filter out if that don’t work check the lines going to the bulb if you have change the bulb out change the lines around
Just bought a new 26ss gas powered weed eater. This is my 3rd time using it and it wont start. I keep it in my shed out of bad weather, so I know it’s kept in good condition. I havn’t used it in 2 weeks and last time I did it ran fine. Yesterday I followed the instructions to crank it and nothing. I have the proper gas to oil ratio, and like I said it’s brand new so I’m pretty sure it cant be the spark plug, and the fuel lines look in tact. One question I have gas in the bubbls just wandering what else it could be? Thanks!!!
Have a look at these tips:http://www.fixya.com/support/r9230929-weed_eater_strimmer_will_not_start
My petrol weedeater/trimmer wont start – Ryobi Three Trimmer Combo
A few easy steps does it spark if not change the plug
if it doesnt spark now it could be a split in the HT lead so change that
Make sure u have clean petrol/oil mix
If still no luck check the on/off switch for rust or water
if damaged clean
Strimmer wont start plug very dry when i remove it?
Sounds like the gas is not getting to the cylinder—remove carb and disassemble–make sure all jets are clear and the float valve moves freely.
My sthil fs 80 has new carb and new rings. has spark but wont start
Is fuel getting into the cylinder.? Is the spark continuous, check gap between flywheel and ignition module. 0.25 filer guage.
My weed wacker wont stay running .It starts and runs in choke and the next setting up ,but only 30 seconds to about 2 min.Does anyone have an idea why
You will need to disassemble the carburetor and spray
with carb.cleaner. Make sure the small screen in the carb. is free of
debris. Use a Den Tek Brush, (http://www.drugstore.com/products/prod.asp?pid=165357&catid=1152), to clean the small portals in carb. These portals can become blocked. Reassemble and start.If you need further assistance, just let me know.Jim