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Won’t start not getting fuel
Experienced gardeners share their insights in answering this question :
Basics to check:
1) Spark plug – brown or dark brown – OK a) is it carbon or fuel fouled b) is there spark
2) Muffler remove for inspection a) exhaust screen clean or plugged b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression

Fuel starvation – ‘lean fuel’ condition
Basic things to check:1) spark plug2) spark arrestor in muffler3) fuel lines and tank filter4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn Chain Saws:5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:Remove Carburetor6) replace gaskets/diaphragms a) use a spray carb cleaner to clean jets, holes, and body of carb b) fuel pump diaphragm goes against the carb body, then the gasket towards the outside c) metering gasket goes against the carb body, and the diaphragm goes towards the outside

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 :

If a petrol engine chainsaw won`t start, it is usually due to an engine malfunction, specifically relating to the fuel system (which mixes the fuel with air and feeds this mixture into the engine`s combustion chamber) or ignition system (which produces the spark that starts combustion and thereby causes the engine to …
One tell-tale sign that a chainsaw has flooded is the smell of fresh petrol near the muffler. To ascertain whether this is indeed the problem, simply disassemble the part, pull the starter cord as if you were switching on the engine, then dry it, reassemble it and try switching it on again.
With the choke in the “off” position, pull the engine`s crank cord through again. The engine should start in 1 to 3 pulls. Try it first without using the throttle control—unless recommended by the manufacturer.
The fuel line may be clogged from stale fuel deposits, more reasons to cause your chainsaw to cut out when applying throttle. If a fuel line is cracked, it will leak gasoline and draw air from outside into the fuel line. If the line is leaking fuel, it needs to be replaced.
They are typically labeled L (low speed jet), H (high speed jet), and I (idler jet).
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.
Product Details. Help protect your 2-Cycle gas outdoor power equipment with the Homelite 2-Cycle oil. This oil is a 50:1 gas-to-oil ratio. Use the whole bottle for up to 6 gallons of gas, or squeeze the bottle and let the top fill to a desired level.
If your chainsaw still starts and then stops working, check the air filter. Clean or replace the air filter if it is dirty or damaged. Another reason that your chainsaw starts and then stops working could be that the spark arrestor is dirty or clogged. If this is the case, clean it with a wire brush.
Set your saw on the ground, placing one hand on the handlebar and your right foot into the boot grip for stability, and pull the cord slowly until you feel resistance. Then pull firmly and rapidly until the engine fires and you hear a pop or a sound like a cough. This is the sound of the engine trying to start.
If your chainsaw still starts and then stops working, check the air filter. Clean or replace the air filter if it is dirty or damaged. Another reason that your chainsaw starts and then stops working could be that the spark arrestor is dirty or clogged. If this is the case, clean it with a wire brush.
Set your saw on the ground, placing one hand on the handlebar and your right foot into the boot grip for stability, and pull the cord slowly until you feel resistance. Then pull firmly and rapidly until the engine fires and you hear a pop or a sound like a cough. This is the sound of the engine trying to start.
With the choke in the “off” position, pull the engine`s crank cord through again. The engine should start in 1 to 3 pulls. Try it first without using the throttle control—unless recommended by the manufacturer.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

Toro 149cc Lawn Mower Won't Start – Toro Lawn Mower With Toro Power Tools
ANSWER : Bad carburetor your old fuel jammed up the jet so it won’t get fuel and if it does it will start and shut off So replace the carb or try to clean the jet and run non oxy fuel only

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Mower won’t start
ANSWER : This may sound stupid but don’t mean it to…
Have you tried with the choke all the way open? Do you have an automatic cruise? Is the right (correct) pedal being pushed in? These will affect if it starts or not. Also if your drive belt or one of the other belts not being tight enough will affect if it starts or just turns over. Not too many things can stope it from starting with new/good battery AND if its getting gas. Try cleaning your gas line and obviously making sure there is no obstruction around or near your blade, if it does start with blade engaged that is :))
If it doesn’t start with blade engaged, well make sure it’s in neutral. Mine won’t start in reverse but will in forward or neutral.

Hope it helps.

Anthony

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Toro clear won't start – Toro Power Clear 621 R
ANSWER : Bad gas , plug ,air filter , no spark ck all need all 3 to start

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My mower will start but won't stay running – Toro LX466 22HP Lawn Tractor 13RT61RH244
ANSWER : I am going to respond 2 times to this post. The first reply will be generic things to check.
First off check the oil level and make sure it is serviced to full.
If your having a lack of fuel (runing lean) you will need to check fuel flow at the carb fuel mainfold. It should fill a spray paint can lid in less than 10 seconds but teting flow rated of the main fuel line. If you have poor flow here… you need to check the fuel filter and the fuel tank outlet port for obstructions.

Good Fuel flow still shutting off…. remove the carb float bow and clean the debris from the bow’ and the treaded area where the fuel solenoid mounts Additionally you will have to again remove the main fuel line and spray carb cleaner in the float needle area to flush out any debris through the fuel hose connection.

For the second response I need to know which engine is installed on your mower by MODEL number if you can locate it. (there are 3 engines) At least try to find the engine model number. If you can not locate it Brand and HP of the engine (I assume 22 hp) Thanks for choosing FixYa,
Kelly

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Have a craftsman 16″ chain saw 358.360260. Could not initially get it started after it had sat for a couple years with fuel stabilizer in it. When I went to use it the fuel had all evaporated and the fuel pick line was rotted. I replaced that with some difficulty but finally got it on. Saw still wouldn’t start. Replaced the fuel filter. Still wouldn’t start. Pulled the carb apart and cleaned and recleaned everything. Diaphragms were good and I didn’t adjust any of the mixture screws because as I said it ran fine before storage. Non of the carb passages were clogged. Fresh gas 40:1, good spark plug and good spark. Airfilter is good. Engine has maybe about 4 hours of total run time on it. It’s a ZAMA (?) carb. It will run for about 30 seconds when I manually prime it by pouring a small amount of fuel directly though the carb. When I was disassembling the carb the vent hose that goes back into the fuel tank seemed to have a small out of ?substance? in it which I cleaned out. It was right at the end the of the hose that goes back into the fuel tank and not up by the carb. It didn’t appear to be like your typical gummy deposits/varnish though. I hope it wasn?t some type of spongy check valve stuff that is supposed to be in there. That might explain some of my problems. Anyway, I also can not seem to get the primer bulb to fill. When I open the fuel tank, look in side and depress the primer bulb, air bubbles come out of the fuel filter. But when I let the bulb reexpand there’s no fuel that gets sucked up the hose. I can however seem to fill the primer bulb when the fuel tank is full and the chainsaw is laying on it?s pull cord side and the bulb is depressed a bunch of times. The saw will also start and run again for about 15 seconds then die. It’s definitely not getting/fuel and probably running out . Thanks.
ANSWER :

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Won't start – Echo Pb – 413t Backpack Blower
ANSWER : Adjust the carb,altitude can effect the engine

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While trying to start the saw the compression is so great that it is near imposible to pull the start rope ….ie won’t spin fast enough to start … new plug ,,,, new gas …..no start ,,,tired arm ,??????
ANSWER : Is there a compression release button?

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Have a john deere sabre turn key won’t start thought battery was dead charged battery still won’t start jump start with car battery it will start then . try to engage reverse with blades running it shuts off. shut down tractor won’t start again .I,m thinking wiring not grounded but where or replacement switch somewhere.give best advise.
ANSWER : Some mowers have a mowing reverse safety switch. That safety will kill the mower if you try to reverse with the deck engaged. Some mowers even have an override button that has to be held while backing up. As for the battery thing, no matter how much you charge a bad battery you will not get it to start a mower if it has a bad cell or two. I would use a multimeter to check battery voltage, but the end result would still be the same, replace the battery.I hope this gets you going again.

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