Installation of throttle speed regulating spring in gasoline engine

The carburetor of 170f gasoline engine is a siphon main nozzle, and its internal working environment is very accurate. If the number of metering holes is inaccurate, there will be poor oil supply, even for new carburetor. Therefore, if the throttle cannot be increased, the following reasons need to be checked:

1. Insufficient compression of the combustion chamber will lead to insufficient air intake, so the gasoline inhaled is insufficient, so the piston ring can be replaced.

Second, the valve leaks, which will also lead to insufficient compression and insufficient air intake. Adjusting the valve clearance can be restored.

Third, the carburetor problem, whether old or new, may have nozzle defects, and other carburetors can be replaced. The specific operation steps are as follows:

1. Remove the fixing screw of the air inlet cover.

2. Remove the carburetor fixing screw.

3. The carburetor can be pulled down directly.

4. As shown in the figure, it can be removed.

5. Install a new carburetor.

6. Just restore the air inlet cover.

Precautions:

1. Turn off the oil valve when changing clothes.

2. When in use, install the air inlet cover to prevent foreign objects from entering.