What are the reasons for insufficient fuel supply after motorcycle ignition?
1 Answers
There are several reasons for insufficient fuel supply after motorcycle ignition: 1. Lean air-fuel mixture: This results in insufficient gas thrust on the piston after ignition, prolonged combustion time, and engine overheating. The indication of a lean mixture is poor acceleration during operation. When manually adjusting the choke or pumping fuel, acceleration improves, but without enriching the mixture, acceleration becomes weak again. 2. Poor sealing of the two-stroke engine crankcase: Air leakage due to failed crankshaft oil seal on the generator side; air leakage at the crankcase joint surface; air leakage at the joint between the crankcase and cylinder or incorrect piston installation direction. 3. Reed valve issues in two-stroke engines: Damaged reed valve; incorrectly installed rotary valve causing carburetor backfire.