What is the reason for the sudden increase in fuel consumption of Yamaha Sail 90 scooter after maintenance?

The fundamental reason for the sudden increase of automobile fuel consumption is that when the vehicle power is insufficient, the accelerator is inadvertently increased, but when there is no increase effect, the fuel consumption will increase.

The main reasons and solutions for lack of motivation are:

First, insufficient air intake leads to insufficient power.

1, air inlet of air filter is not smooth. Clean or replace the air filter.

2. The throttle valve is closed and does not work. Clean the throttle.

Second, the accelerator hole of carburetor is blocked, which leads to insufficient power. Clean the carburetor.

Third, the power shortage caused by insufficient voltage and current in the circuit.

1, battery voltage is insufficient. Charge the auxiliary voltage or replace the battery.

2. The uneven contact of circuit breaker leads to insufficient current and power. Replace the circuit breaker.

3. The contact of distributor cover is uneven, and insufficient current leads to insufficient power. Replace the distributor cover.

4, cylinder pipeline aging caused by insufficient power. Replace the cylinder line.

5. The power generated by the spark plug is insufficient.

(1) Short circuit of spark plug leads to insufficient power. Replace the spark plug.

(2) The spark plug is not clean or the ignition contact is deformed. Clean or adjust the spark plug ignition contact.