Install throttle cable into carburetor

Be careful to not tear the gasket between the carburetor body and top plate. Slide the black piece you removed in step 1 over the small end of the throttle cable end and move it up onto the black portion of the cable. Hold the top plate and spring assembly in one hand. Compress the spring to allow the cable end to extend through the plastic piece at the end of the spring.

Insert the cable end into the aluminum slide piece and hook it into the small circular groove. Release your grip on the spring and allow the spring and plastic piece to lock the cable in place inside the slide. Push the black piece from Step 1 down over the cable and brass fitting and twist it until it covers the base of the brass fitting.

How to Install a Throttle Cable into a Koso Slide Carburetor Introduction: This guide will instruct you on how to install a throttle cable into a Koso slide carburetor. Tools: Philips Screwdriver or metric Allen wrench. Remove the black piece covering the brass fitting at the top of the carburetor. Image 3: Remove two screws from top plate.

Remove the two screws holding the top plate on the carburetor. Image 6: Insert throttle cable through black piece. It is impossible to remove or install the throttle cable without disassembling the handle. And while this is a detailed set of instructions, it may not work with every model of every chainsaw.

Many different models from many different manufacturers differ in how they are constructed. But what they all have in common is that a throttle cable will always connect to the carburetor from the main trigger. With the old throttle cable removed, you can now install the new throttle cable.

You will need to push the new cable inside the seat on the trigger. It is basically like connecting wire into a circuit board. Once the throttle cable is attached to the trigger, you can once more push the throttle interlock lever into the down position. Now, take all the pieces of the handle and reinstall it so that it looks just the way it did before. You should now be able to wind the throttle cable into its proper seat on the side of the carburetor.

You will want to attach the throttle cable in the exact same way it was before you removed the old one. It is important that you look closely at how the throttle wire is positioned inside of the machine, as you will want to copy it exactly.

It may even be beneficial to take a photo once you have the guts of the chainsaw opened up. Now its time to seal everything up. You will need to refit the grommet so that it is back in the same position. You can also place the air filter back where it belonged and tighten the nuts back in place, thus securing the filter to the carburetor. Congratulations, you have just installed a new throttle cable on your chainsaw.

If you have any problems once starting the tool, it is likely you made a mistake along the way. I recommend double-checking the connection at each end of the throttle cable. Now you know how to install a new throttle cable. To recap, the throttle cable is what connects the trigger with the carburetor.

I want you to think about the throttle cable as the cord to a trap. When you squeeze the trigger, the cord is pulled taut and a vent is opened on the carburetor which allows gas to flow freely into the mixing chamber. The harder you squeeze the trigger, the wider the vent is opened and the more power the engine receives. In fact, this works exactly the same as a car. The further you push the pedal down on the car, the more fuel is delivered into your combustion engine.

This is basically how every combustion engine on the planet works. Sometimes, the throttle cable can become detached from either side, either the trigger or the carburetor, if you have dropped your chainsaw, smashed it off a tree, or in some other way damaged it.

However, throttle cables are inexpensive, and as you can see from this guide, very easy to install. Randy is a chainsaw enthusiast and an experienced lumberjack.