g a spark through the plug,poured gas in the plug hole, reinserted plug and plug wire, pulled the starter rope and engine did not start. The saw has set for a long period of time with gas in it. It has run previously but when shut off and tried to restart it would not start. My e-mail address is [email protected]
Garden
Experienced gardeners share their insights in answering this question :
Chances are the carb is all plugged up.
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 :
A chainsaw`s carburetor mixes air and fuel to start the internal combustion engine. If fuel has been left in the engine for too long, it can become sticky and clog the carburetor, preventing it from starting. If the clog is minor, clean out the carburetor.
If the chainsaw won`t start, or starts and then stops and you find the spark plug wet with fuel mixture, it means that the engine is flooded (you will probably smell petrol). It happens when too much fuel enters the combustion chamber, possibly because you have pressed the primer many times.
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.
A dirty carburetor, bad gasoline and low-quality two-stroke oil that creates deposits all contribute to chainsaw starting problems.
A dirty carburetor, bad gasoline and low-quality two-stroke oil that creates deposits all contribute to chainsaw starting problems.
What Causes Chain Saw Kickback? There are two circumstances that can cause kickback when using a chain saw. The first occurs when the moving chain at the tip or the nose of the guide bar strikes an object. The second situation is when the wood closes in, pinching the saw chain in the middle of the cut.
Discover Relevant Questions and Answers for Your Specific Issue
the most relevant questions and answers related to your specific issue
Chainsaw stalls Chainsaw is 4 years old and has a history of moderate use. After I ran the saw about 1 minute on plain gas (grabbed the wrong gas can – ouch) the chainsaw sputtered and stopped.
It didn't seize, and the pull starter never became more or less difficult than normal. The engine would continue to start if I pressed the prime bulb and engaging the choke, but stall again after 10-20 seconds. The temperature that day was about 50 degrees F and I was running the saw with the “cold plug” installed (per warm weather running).
When it refused to keep running I did the following:
Flushed the fuel tank (that's when I saw the gas had no oil in it).
Ran hardware wire through all of the fuel lines.
Replaced the fuel filter and spark plug.
Cleaned the air filter with a nylon brush and compressed air.
Same behavior (start then stall in less than 20 seconds). I made at least 20+ attempts to start it.
I removed the carburetor and, though it looked perfectly clean, I took off the top and bottom covers then sprayed everything with automotive carb cleaner and blew out the passages with compressed air. The gasket and diaphragm looked new. No pinholes in the diaphragm when held against a bright light. I reinstalled the carb but got the same behavior (start then stall in less than 20 seconds). I again made at least 20+ attempts to start it.
I disassembled the short block and saw that the piston has some slight scoring on it. The ring is clean and I verified that the piston ring has .001 clearance between it and the piston ring groove all the way around with the ring held tightly in place (I was thinking that the piston might have become deformed if it did indeed get too hot when run without any oil premix).
The cylinder wall has no scoring and there isn't any signs of melted aluminum anywhere. The crank is clean as was the inside of the crank cover.
I reinstalled the crank cover using permatex non-hardening gasket goop and torqued the cover bolts to 10 inch pounds. I reassembled everything else per the exploded diagrams in Echo's “parts manual” for the CS400.
During assembly I took note that both the carb gasket and intake boot look like new.
Still the same result: press prime bulb once, engage choke, pull a few times and it starts but stalls after 10-20 seconds.
I'm stumped.
ANSWER : Not sure what to say other than its fuel starvation, if not already done replace the fuel filter in the tank, if no better i would suspect a massive air leak, so replace the crank seals, if there is no primary compression in the crankcsae fuel will not pull through the engine, good luck.
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.
What does a spark plug gap at – Craftsman sears 18" Chain Saw Chain ( Model 35084 )
ANSWER : Hi, your spark plug gap should be the thickness of a hacksaw blade. use a hacksaw blade. sheers
<!– from fixya rte –>Spark plug gap setting poulan pro 033. – Poulan Pro Prod/Poulan Weedeater Poulan Pro PP5020AV 20" Gas Chain Saw
I have a Craftsman 2.5 Turbo 18″ chainsaw. Yesterday it would start and run briefly and the die. I changed the sparkplug and cleaned the air filter and now the saw will not start. The plug is generating a good spark. What else should I be checking.
ANSWER : Seeing a lot of fuel line problems due to ethanol. Make sure your fuel lines and primer lines are in tact. If the fuel line has broken, you may also need to clean out the inlet screen in the carburetor which can also become clogged.
Saw will not start. – Craftsman sears 18" Chain Saw Chain ( Model 35084 )
ANSWER : Check for spark by removing the plug, connect the plug wire, and lay the base on engine metal. Pull the starter through several times which should result in blue, snappy sparks. If weak or nothing, try a fresh plug (gapped 0.020″). If still nothing or weak, remove the left side cover to expose the flywheel and ignition module. Turn the flywheel til the magnets are under the module poles. Insert a thin business card into the pole gaps, loosen the module screws, and allow the module to contact the magnets. Tighten the screws and turn the flywheel somewhat to remove the card. Turn the flywheel one full turn to make sure the gaps don’t close up any further. Remove the ignition switch wire from the module body, then try for spark again. If ok, reconnect the ignition switch wire and try for spark again. If now get nothing, check the switch/wire for a grounding short. If you still get nothing after the above test, replace the module using the above procedure. If the first test produced good spark, pour a little fuel mix into the hole and try for start, If you get several pops, you have a fuel delivery problem–check the fuel filter, air cleaner, and muffler for plugging. Check the fuel lines for decay or other damage. Make sure the carburetor is tight to the engine. Make sure to have fresh fuel mix in the tank. Hope some of this helps!
Chain saw won’t start – pull starter pulley hard to pull?
ANSWER : If it worked fine the last time you used it, then pull the spark plug and try pulling the rope. See if it’s easier or if gas shoots out of the plug hole. I’ve seen this happen when the diaphram in the carb goes bad from sitting over winter. It loads up the cylider with fuel and makes it very difficult to pull the rope. If there is no fuel in the cyliner and it’s still hard to pull, make sure there is nothing binding the clutch/sprocket. I’ve had chucks of wook lodged in there that caused it to bind the crank output, which resulted in a hard pull on the rope as well.
I have a craftsman 18 inch chain saw that will not start, I replaced the spark plug.replaced the fuel filter, cleaned the air filter, am getting a spark through the plug,poured gas in the plug hole, reinserted plug and plug wire, pulled the starter rope and engine did not start. The saw has set for a long period of time with gas in it. It has run previously but when shut off and tried to restart it would not start. My e-mail address is
[email protected]ANSWER : Chances are the carb is all plugged up.
