1. Locate the idle-speed screw and the idle-mixture screws on the side of the chainsaw.
  2. Turn both the low- and high-speed screws clockwise to the midpoint.
  3. Adjust the low-idle screw clockwise and counterclockwise respectively, until you find the highest idling speed.

Similarly, What does the L and H mean on a chainsaw?

“On every saw the “h” means that’s the “high” side adjustment. It regulates the fuel/air mixture that is being passed into the motor during high rpm’s. The “L” means that’s the “low” side adjustment. It regulates the fuel/air mixture that is being passed in the motor around the low rpm’s”

Also, How do you adjust the chain on a Husqvarna chainsaw?

Guide to tensioning the chain on your chainsaw
  1. Disengage the chain brake.
  2. Loosen the bar nuts that hold the clutch cover, using the combination spanner.
  3. Raise the tip of the bar and stretch the chain by tightening the chain tensioning screw by turning it clockwise using the combination spanner.

26 Related Questions and Answers Found 💬

 

Why does my primer bulb not work?

When the primer bulb isn’t working, it may be a problem with the bulb itself, with the fuel lines that feed fuel to the bulb or both. The same goes for fuel lines. When they’ve hardened and cracked, they let in air, which makes it impossible to draw the fuel into the carburetor properly.

How tight should a chainsaw chain be?

A properly-tensioned chainsaw chain should still be just a little loose on the chainsaw guide bar, but the chain needs to be tight enough that you can’t pull the drive links out of the bar nose.

How do you replace a primer bulb?

Reviewing these steps will likely help with primer bulb replacements on other engines.
  1. Access the carburetor.
  2. Unscrew the two carburetor mount screws.
  3. Remove the old primer bulb.
  4. Clean the carburetor and primer bulb components.
  5. Install the new primer bulb.
  6. Remount the carburetor.

How does a priming bulb work?

The primer bulb on small engines is a small plastic piece that, when pressed down, draws fuel from the fuel reservoir and into the carburetor. The carburetor is a part of the engine that mixes fuel and air together to make a combustion. Most weed trimmers have a primer bulb to prime the carburetor.

How do you start a chainsaw that won’t start?

To solve this problem, open the spark plug hole with it facing away from you to drain all the fuel in the tank. Deactivate the choke by pushing in the control then pull the starter cord 6-8 times as you press in the throttle control. Dry off the spark plug and refit it back in place.

Why does my chainsaw not stay running?

This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall. If the carburetor is clogged, try cleaning it with carburetor cleaner. If the air filter is clogged, the engine will get too much fuel and not enough air. As a result, the engine may stall or run roughly.

Why does my chainsaw not stay running?

This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall. If the carburetor is clogged, try cleaning it with carburetor cleaner. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor. A clogged fuel filter is often caused by leaving old fuel in the chainsaw.

How much does a chainsaw tune up cost?

How do you rebuild a McCulloch chainsaw carburetor?

Use this procedure to rebuild the carburetor on Craftsman, MTD, Poulan, McCulloch, Troybilt and Husqvarna chainsaws.

Instructions

  1. Drain the fuel tank.
  2. Remove the cylinder shield.
  3. Disconnect the spark plug wire and remove the air filter.
  4. Remove the carburetor.
  5. Rebuild the carburetor.

Are primer bulbs bad?

Re: bad primer bulb? The primer bulb will NOT stay hard with motor running–that is normal. I suspect your fuel pump is not set up correctly (easy to goof up–don’t ask!) or the gasket between the carb and block does not have the hole in it (for vacuum) aligned correctly.

Does a primer bulb have a hole in it?

the no hole primer is used when the primer is part of the carb itself. Yes the carb bowl vents through the primer hole on the engines with the primer mounted on the air cleaner. It is very common for the air cleaner backing plate, to warp were it mounts to the carb, and if it doesn’t seal, when not prime.

How do you install a primer bulb?

Reviewing these steps will likely help with primer bulb replacements on other engines.
  1. Access the carburetor.
  2. Unscrew the two carburetor mount screws.
  3. Remove the old primer bulb.
  4. Clean the carburetor and primer bulb components.
  5. Install the new primer bulb.
  6. Remount the carburetor.

Do they still make McCulloch chainsaws?

How do you stop a gas tank leak?

How to Use Gas Tank Sealer to Stop a Fuel Leak
  1. Drain the gas so that the tank is completely empty, or the fuel level is below the cracked or leaking area.
  2. Allow the car to cool down completely and make sure that the gas tank is close to room temperature.
  3. Prepare the gas tank surface for the sealer.

Why do primer bulbs stick?

Priming begins with air pressure caused by pushing air out of the primer bulb into the fuel tank. A clogged air filter or tight fuel tank cap that fails to vent properly can create a vacuum as the primer drives air into the fuel tank, failing to force the bulb back out.

What year is my McCulloch chainsaw?

Turn the McCulloch chainsaw upside down, and locate the serial number plate, which is a metal plate on the bottom of the chainsaw. Scan the plate for the word “Model” followed by a series of letters and numbers; the letters and numbers are the model of the chainsaw. A model number example is “CS 380.”

Which fuel line goes to the primer bulb?

One line goes from the fuel tank to the primer bulb, from the primer bulb to the carburetor, and back to the fuel tank.

Why does my chainsaw cut out?

A clogged air filter is usually the most common reason as to why your chainsaw keeps on stalling. This is purely down to the fact that if an air filter is blocked in any way, it will have a knock-on effect to the air circulation within the machine and subsequently kill the engine.

Is primer bulb necessary?

A primer bulb is important because it is helps to fill the carburetor with the correct amount of fuel. It does this by pulling fuel through the fuel line. You may need to fix or replace your primer bulb if: It is not creating proper suction.

How much does a chainsaw tune up cost?

How to Prime a Lawn Mower Without Primer Bulb?
  1. Find the air cleaner and remove its cover.
  2. Proceed to remove the air cleaner itself.
  3. The housing should be clearly exposed by now.
  4. Quickly put the air cleaner back in its original position and replace the cover.
  5. Now, your lawn mower is ready to use without the primer bulb!

Chainsaw Maintenance
  1. Check the bar and chain oil level often. It is best to do this before each use.
  2. Keep the chainsaw chain sharp. This will not only make cutting more efficient, it will also prevent kick backs and increase safety for the person using the chainsaw.
  3. Clean debris from the saw after each use.

How do you replace the primer bulb on a McCulloch chainsaw?

How to Replace a McCulloch 3216 Chain Saw Primer Bulb
  1. Pull the black, rubber spark plug boot off the spark plug on the rear of the chain saw engine to prevent the tool from starting accidentally.
  2. Examine the primer bulb on the left side of the engine, above the pull rope.
  3. Insert a T8 Torx screwdriver into the four screws on the recoil housing surrounding the pull rope.

How often should you change the spark plug in a chainsaw?

I recommend just changing the plug, which should be done anyway at least once a year. Spark plugs are cheap! Before installing the new plug, you should check in your user manual and find the proper gap (the air space between the two electrodes at the end of the plug).

How often should you change the spark plug in a chainsaw?

Tuneup, starting at $52.50 plus parts. Includes: Install Spark Plug. Install Fuel Filter.

How much does it cost to fix a chainsaw?

THE AVERAGE CHAINSAW SERVICE IS $100 TO $125

If we do not feel it is worth repairing, we will tell you so.

How often should you service a chainsaw?

Obviously this depends to some degree on how often and how heavily you use your chainsaw but experts generally recommend you get a professional service or check-up from every few months for heavier use to at least once a year for light use.

Do primer bulbs need to be filled with gas?

the primer bulb should be mostly fuel, check the lines they get old and start cracking. replace with tygon. there is a fuel pump in the carb operated by pulses from the crank case, the diaphragm in it can can go bad also.

What does priming an engine do?

A primer will pump a small amount of gas into the carburetor. A primer sends gas into the carburetor so it can create a fuel and air mixture that is ready to go right into the cylinder and keep the engine running.

How do you maintain a chainsaw?

Obviously this depends to some degree on how often and how heavily you use your chainsaw but experts generally recommend you get a professional service or check-up from every few months for heavier use to at least once a year for light use.

Chainsaw Maintenance
  1. Check the bar and chain oil level often. It is best to do this before each use.
  2. Keep the chainsaw chain sharp. This will not only make cutting more efficient, it will also prevent kick backs and increase safety for the person using the chainsaw.
  3. Clean debris from the saw after each use.