Have the saw on a low bench, so you can control it when she starts up - if the revs are too high the chain will spin up which can be dangerous. Thank you for using Manage my life. It's a flat rubber part that is in the carburetor. If the vent cap cant get rid of it as fast as it is created the increased pressure forces too much gasoline into the carburetor and it floods it out. Continue small adjustments untill the saw is performing well at full throttle while Cutting. Next make sure that chain tensensioner is not to tight to allow chain to rotate. Apr 10, 2011 If the chain runs at idle, or tries to turn when cranking the saw, then there is an issue with either the clutch drum bearing or the clutch spring has become weak, to get to both of these components you need special tools, the tool to remove the clutch is part no.
I could never see a physical difference between the good and bad one but the new one fixed it. It needed a new diaphragm. Some have two screws, one for air during idle, the other for the gas during idle. Usually it can be solved by a carb adjustment. This in turn makes the gas tank hotter and makes it build up pressure in the tank. If your chainsaw fails to start, you may have to put important projects on hold until you can get it fixed.
Follow these simple troubleshooting procedures and replace worn Craftsman chainsaw parts to get your chainsaw back to work as soon as possible. The expert may have better information. They both should be out about one and a half turns which is industry standard and then you can fine tune from there, but usually only a half turn cw or ccw would be way too much difference from the standard positions. If air doesn't push out when you pull the starter cord, you may need to replace the piston rings. Clean and lube guide channel on bar and make sure that bar is not dented or badly rusted. The saw should Always be adjusted to run well during the cut. Call Sears parts or visit them on-line to get a parts breakdown of the carb.
I did find a manual for a 42 cc with 18 inch bar. Remove the wire from the spark plug and take it out of the chainsaw to check it for corroded areas, deposits or damaged electrodes. Clean or replace the spark plug, and ensure adequate gaps when placing it back into your Craftsman chainsaw. That setting should allow the saw to start if you are getting fuel to the carburetor. Replace the Fuel Your chainsaw may not start if the tank is holding old fuel that has gathered moisture, making it difficult to burn. Test the Compression A chainsaw can't start without compression in the cylinder, so check for adequate compression by removing the spark plug and placing your thumb over the hole.
I had a 2 cycle snow thrower that acted similarly. When they get old they act up. On the carb there are usually two screws, one marked low or L , the other marked high or H. The model number is normally located on the housing. I am sorry but I was unable to find a special edition manual. Here is a list of the most common chainsaw problems: Chainsaw won't start Chainsaw engine stops after a few seconds Chainsaw runs poorly Chainsaw chain does not turn Chainsaw chain won't stop turning Chainsaw does not cut properly Click here to purchase replacement chainsaw parts: Additional chainsaw repair, troubleshooting tips, help with finding your model number and part replacement videos can be found on our website: Connect With Us! Posted on Mar 14, 2011 Walter: gently run the fuel and air mixture screws on the carburetor all the way closed clockwise. For help and replacement parts specific to your chainsaw maintenance, choose your model from the list above, click the chat button, or call 1-800-252-1698.
Good luck and thank you. If you do locate the model, you can click on the Manuals tab link below and enter it for online access. Drain the fuel tank completely if your Craftsman chainsaw has sat unused for several months, and add new fuel using the mixture ratio detailed in your chainsaw's user manual. . Make adjustments a little at a time, then try The saw.
It could also be on the inside of the handle. For outdoor projects of every size, Craftsman chainsaws are a popular choice due to their value and reliability. Use a compression gauge when testing compression for more exact. Sears PartsDirect carries a wide variety of Craftsman chainsaw replacement parts for all your repair needs. The switch itself may be full of sawdust as well preventing contact to engine ground. This is also aided by spilled mixed gas which has oil in it running down onto the cylinder heads and then the sawdust sticks to it over time and building up where it makes it difficult for the cylinder head to get rid of all the heat it makes from running. Owner's manuals can be a life saver when there is a problem.
If this fixes the throttle problem, but the kill switch still doesn't work, you may have to remove the left side case to access the ignition module and the kill switch wire which plugs into the end of the module. Make sure the cable or rod which connects it to the throttle arm will move--there should be spring return of the throttle arm to idle position. Then I suspect some people change that cap to one without a vent, which causes the problem you are describing. If you are able to get the model number, you can use the following link to view the manual. Check the Spark Plug A worn or broken spark plug can keep the chainsaw from igniting, and it is one of the most common reasons for users to buy. Now screw the idle down until the chain stops and the motor starts to stall, screw it out a little to get a running idle which will not stall but never starts the chain spinning up. Here is a link to order any parts you need.
If all else fails replace bar and chain. Low is your adjustment for idle mixture, high is for mixture at full throttle. Some vent thru the cap but eventually the duck bill valve starts leaking fuel. The homelites are notorious for the vent screen in the gas tank cap getting dirty and pressuring up which forces more fuel into the carburetor and floods the motor. It may be a metal tab or sticker. .
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