What Causes Smoke from the Steering Wheel?

[ElizabethDella]

Reasons for smoke from the steering wheel are as follows: Incorrect Fuel Mixture: An incorrect mixture of fuel and engine oil, or the use of the wrong grade of engine oil. If the fuel mixture contains too much engine oil or the oil quality is poor, the combustible mixture's oil cannot burn completely, resulting in black smoke. For two-stroke engines with separate lubrication systems, an improperly adjusted oil pump supplying excessive oil can also cause this phenomenon. In such cases, the oil pump should be inspected and adjusted according to specifications to ensure proportional lubrication oil supply at different throttle openings. Excessive Engine Wear: Excessive wear or breakage in a four-stroke engine, as well as excessive oil in the crankcase, can cause oil to enter the combustion chamber, leading to an overly oil-rich mixture. For two-stroke engines, a damaged crankshaft oil seal can allow transmission oil to leak into the crankcase and enter the combustion chamber with the mixture.