Durable critter, I used it for 12 years, but it was tempermental from the gitgo. Just a shade too much and it would flood and I would have to wait for a cool morning to crank it. If you cleaned the carb, make sure the settings are factory spec. Try cranking it cold with choke only. Like I said the one I had was very prone to flooding.
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McCulloch chainsaw won't restart? | fuhyfuzi.ml
Lawn Mowers. Trouble shooting a Mac chainsaw. Email Save Comment 4 Like. Comments 4. Pull the muffler and have a look at the piston.
It may be scored resulting in low compression. Like Save December 22, I have checked compression it Turn each screw back one full turn and start the engine. Allow the engine to warm up for about five minutes. Measure the idle speed if using a tachometer. Ideally, it should read approximately 2, RPM. If you choose not to use one, use the screwdriver to turn the idle screw as high as possible without engaging the clutch. If the chains start spinning, turn the screw back until it stops.
Adjust the low-speed screw using the screwdriver. Turn it slightly back and forth and listen for the engine sounds to change.
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On one end, it will surge heavily. On the other end, it will nearly die. Find the midway point between these two extremes. You may need to return to the idle adjustment after completing the low-speed adjustment. If so, repeat Step 3 and then continue on to Step 5. Open the trigger fully and listen to the motor. It should scream when it is completely open, then flutter when idle.
A tachometer reading should be generally between 10, and 12, RPM when fully open.
Only attempt to adjust the high-speed screw if it is absolutely necessary to machine operation. Making hasty adjustments can blow out the engine and cause irreparable damage. Josie Myers has been a freelance writer and tutor since A mother of three, she was a pre-kindergarten teacher for seven years, is a Pennsylvania-certified tree tender and served as director of parks in her local municipality. Skip to main content. Home Guides Home Home Improvement.
McCulloch chainsaw won't restart?
Home Guides Home Home Improvement A standard flathead screwdriver usually suffices to turn adjustment screws. Tips Make sure you have at least half a tank of clean, new gasoline in the tank before attempting the procedure. It is a good idea to clean parts when you carry out any repair.