Why can't the motorcycle kick starter be pressed down?
2 Answers
Possible reasons include high engine oil temperature causing cylinder seizure, gear damage, insufficient gearbox oil, or a stuck kick starter. Two-rod type: In the two-rod type kick starter, the kick starter is pivotally connected to the kick arm, allowing the kick starter to rotate at an angle relative to the kick arm. The large end of the kick arm has a splined hole (usually triangular spline) for connection with the starter shaft, along with a clamping opening. Its characteristics are easy manufacturing but lower strength, generally suitable for vehicles with a displacement below 100mL. Integrated type: In the integrated type kick starter, the kick starter and kick arm are made as one piece, with the lower part connected to the starter shaft via a joint sleeve, allowing the kick arm to rotate at an angle. This type of kick starter has good strength and can transmit larger torque, commonly used in medium-displacement vehicles.
Last time I helped my neighbor Old Wang fix his old motorcycle, I encountered the same situation. If the kickstarter can't be pressed down at all, the problem is most likely stuck inside the engine. The most common issues are piston ring seizure or crankshaft bearing wear and sticking, which are often related to insufficient lubrication. First, check if the engine oil level is normal and whether the oil has deteriorated or turned black. I've encountered cases where the oil was too viscous in winter, causing the oil in the gearbox to solidify and jam the main shaft. Here's a lesser-known fact: a motorcycle parked at an angle for a long time can cause the chain to tighten, which can drag the engine backward through the transmission and lead to seizure. If the rear wheel can turn a few times when lifted, it's not a major issue. The most troublesome situation is when water enters the cylinder, causing rust and seizure—this requires engine disassembly to fix.
