What can cause rich fuel mixture?

What can cause rich fuel mixture?

Causes of a Rich MixtureFaulty O2 Sensor. The O2 sensors are located on the exhaust pipe to sense the air-fuel mixture from the previous combustion. Faulty MAF Sensor. Faulty MAP Sensor. Faulty Engine Coolant Temperature Sensor. Faulty Intake Temperature Sensor. Faulty Fuel Pressure Regulator. Worn Out Spark Plugs.

Why is my carburetor not getting fuel?

No fuel at your carburetor can be caused by many things. It could be a simple issue like a fuel filter plugged so tight that no fuel can pass through. Another logical cause could be the fuel pump. A hole in the fuel line on the tank side could also cause the fuel pump to suck air instead of fuel from the fuel tank.

How do you troubleshoot a carburetor?

Examine idle and main mixture adjustment screws and O-Rings for cracks and damage.Carburetor out of adjustment.Engine will not start.Engine will not accelerate.Engine hunts (at idle or high speed)Engine will not idle.Engine lacks power at high speed.Engine overspeeds.Engine starves for fuel at high speed (leans out)