Ever found yourself wondering the rate of chainsaw rpm? Well, you are not alone. Most chainsaws range from a cutting speed of 8500- 9500 and a maximum of 7800-8300 rpm.
But how does one adjust the screws on a chainsaw without a tachometer? A tachometer is an essential tool for making essential adjustments when setting your chainsaw to high speeds. The Screws for speed adjustment in most chainsaw carburetors are labeled in I, L, and H in that order.
You will need to have a screw at hand for turning the screws and a tachometer that records the speed. The difference between the older tachometers and the digital ones is that you need to attack the tachometer to the plug wire for older ones while the digital ones only record the rpm (Revolutions per Minute); thus no need for any physical linking.
However, with the above knowledge about the chainsaw, you need to know how to connect a tachometer with the carburetor. You also need to know how you can adjust the carburetor on the various types of chainsaws available in the markets today.
How to connect a chainsaw carburetor to the tachometer for chainsaw rpm reading
For a successful reading of the rpm of your chainsaw, you need to make the right adjustment of your chainsaw carburetor to the tachometer. Below are the steps to follow too I, rpm speed.
- Remove the air filter of your chainsaw and clean it with soap and water or with compressed air. Using a dirty air filter will give you inaccurate reading as the dirt affects the speed of your chainsaw carburetor. You should replace your air filter if it doesn’t get clean.
- Ensure that the tank has the appropriate fuel and oil combination ready for your saw. Empty the tank if it has held fuel for more than months and put fresh oil in It.
Note that it’s a requirement for you to adjust your carburetor only when the tank is full. Failing to do this will cause your settings to give you a concentrated fuel mixture when you refuel your chain saw.
- Start the engine of your machine and let it run idle for not more than 5 minutes. If it refuses to start, adjust the idle setting labeled as “I” by turning it all around clockwise, then start your chain saw again. You can then turn the screw clockwise slowly until the chain comes to a halt.
- Change the idle setting by turning it clockwise for your chain to start running. After this is successful, turn your screw the other way round for the chain to stop. It will enable you to record the speed of your engine with your tachometer. Take your reading depending on the type of tachometer you have, either the digital one or the older version.
- Compare the operator’s specifications on the manual with the idle speed on your saw. Most saws range between a speed of 2,300 rpm and 2. 500 rpm. The speed of your saw should match the one in your manual. In case the manual is not available, search it online by keying in the name of the saw in the search box.
- Next, you move to the “L” screw and turn it clockwise. Note the position of the screw, then wait for the engine to finish the oil until it dies. Now turn the screw the other way and watch for the opposite action to happen. The fuel should begin to flow by now, and the screw should be in between the two marked points.
- Turn the “H” screw clockwise as the engine races at high speed until it begins to race. Note the safest top speed of your saw as recommended in your manual, and don’t set your tachometer beyond it.
- Continue turning the H screw clockwise until the carburetor gets enough fuel. You will know this by the engine’s sound as it gets fuller and louder as it gains more fuel.
- Now you can read your best top speed the saw can run from your tachometer. Readjust the screws labeled as “I” and “L”
Best chainsaw tachometer.
This piece of equipment enables you to have fuller control over your saw speed. It plays a very important role in improving your chainsaw rpm. By checking on your chainsaw RPM readings you will know whether adjustments are necessary. This is the only way that will enable the easy maneuverability of your saw.
There are 3 types of tachometers you can find at the market today.
- Wireless chain tachometer
- Stihl chainsaw EDT 9 tachometer
- Echo tachometer: This is a kind of tachometer
One of the best tachometers in this category is the Cyber tech handheld tachometer. It has the capability of measuring speeds ranging from 2.5 up to 99 999 rpm. Moreover, it has 4 AAA batteries and an LCD.
This tachometer has the added advantage of zero automatic adjustments, thus allowing you to keep the value you desire.
Apart from the fact that this company produces an excellent chainsaw accessory, the EDT 9 chains way tachometer is mostly loved for its top handle saws. Its high performance matches its expensive cost.
The style edit 9 chainsaw is a wireless accessory that operates using a double magnet system that offers peculiar options. The only disadvantage with this tachometer is that it’s difficult to get, and there is not much information about it that you can find online.
Used to measure speed on both two-stroke and four-stroke engines. It can either be clipped to the plug wire or used in wireless mode to take the rpm speed of the engine and measure speed ranging from 100 to 19,000 pm.
Know the functioning conditions of your chainsaw. Getting a tachometer is the best choice to make as it will help you record the rpm of your chainsaw. Be careful to choose the best tachometer you need for your chain saw.
It’s also important to note that a tachometer is not used on chain saws alone. You can also use it to record the speed of any other engine you have.