What if Yamaha motorcycle mt09 doesn't idle?

1. Adjust the throttle adjusting screw and air conditioning screw. If there is still no idle speed, remove the carburetor and open it. Use steel wire with a diameter less than 0.4mm to dredge the idle measuring hole and idle air passage, and blow all the holes clean with a pump.

2. If there is still no idle speed after installation, it means that the oil level in the carburetor float chamber is too low or the reed valve and crankcase are leaking.

3. Start the engine for inspection. If the choke valve is closed and the idle speed becomes better, it means that the oil level in the float chamber is too low, and the angle of the tongue of the float arm should be adjusted to achieve the purpose of raising the oil level.