Finding the right air to gas ratio will extend the life of your car. If your car feels too rough, you need to adjust this mixture and find the right stationary conditions to reduce the load on the engine, where the engine is not spinning too fast or too slow. Adjusting the carburetor can be done in a few easy steps and requires no special tools. See step 1 here.
Step
Method 1 of 2: Adjusting the Gasoline and Air Mix
Step 1. Find the air filter and remove it
In general, you need to open the air filter to access the carburetor and adjust it. Open the hood and make sure the engine is off before you open the air filter. Unscrew the screws and remove the entire air filter.
Depending on the make and model of your car and the type of engine, the air filter can be in different places. Check the manual or ask the repair shop
Step 2. Locate the bolt after on the front of the carburetor
There should be two bolts, one to regulate the air, the other to regulate the gas.
Usually the bolts are bolts for flat screwdrivers. You can use a screwdriver to turn it, adjust the amount of gasoline and air mixture. in the carburetor
Step 3. Start the engine and allow it to reach normal temperature
Check the temperature needle to find out the engine temperature, listen to the engine sound to get the right after later.
- Poor mix machine will chime at high RPM, when you press the gas. Need more gasoline added to the mixture.
- Mixed rich machine it won't sound much different, but you can smell it. Reduce the gasoline mixture.
Step 4. Adjust the two screws and find a suitable mix
Tuning the carburetor will feel like tuning a guitar or any other stringed instrument. You need to rotate them evenly and slowly until you find the right position. It doesn't matter whether the engine is too rich or poor, just turn the two screws in a quarter turn counterclockwise, and then reciprocate the rotation gradually.
Tuning these mixes is an art, requiring your familiarity with machines and a keen ear. Gently re-tighten the two screws and listen for the engine to make a gentle sound. If there is a snag, it's a sign that the mix is still too poor. Keep turning until it's in the right position
Step 5. Replace the air filter
Once you've adjusted the carburetor, put the air filter back in and you're good to go.
If you need to adjust the stationary position as well, wait until this is done before you replace the air filter
Method 2 of 2: Setting Stationary Spin
Step 1. Locate the throttle cable and its adjusting screw
This cable can be found by routing the cable from the gas pedal to the carburetor. Always check the manual if you can't find the screw.
Step 2. Start the engine and allow it to reach normal temperature
Just like when you adjust the carburetor, let the engine warm up so you set it to actual conditions.
Step 3. Turn the throttle adjusting screw to tighten, turn it counterclockwise, no more than half a turn, and listen to the engine speed
In the manual will be listed how many engine rotations are optimal when stationary. Check the manual and look at your tachometer to adjust it.
Step 4. Hear a rough sound on the machine and adjust it again if necessary
It takes about 30 seconds for the engine to adapt to your settings, so don't set it too fast. Make slow turns and listen carefully to the response.
Step 5. Reinstall the air filter and you're done
After you have set the stationary RPM to the correct specifications or to your taste, turn off the engine and install the air filter.
Tips
- Tightening the RPM adjustment screw will speed up the rotation and loosening it will reduce the RPM.
- If after tuning the engine does not run smoothly, repeat the air and gas adjustment again.
- If your car has a tachometer, you can use it to determine the correct stationary RPM.
