Honda cbr650r accelerates for a few seconds in 100 kilometers.

The 100-kilometer acceleration time of this motorcycle is 4 seconds. This motorcycle uses a water-cooled four-cylinder four-stroke EFI engine. The displacement of this engine is 649cc, and the compression ratio is 1 1.4 to 1. This engine has a maximum power of 56kw, a maximum torque of 60 Nm, a maximum power speed of 9000 rpm and a maximum torque speed of 8500 rpm.

The working principle of four-stroke engine for motorcycle is actually the same as that of automobile engine.

A four-stroke engine has four strokes when working, namely, intake stroke, compression stroke, power stroke and exhaust stroke.

When the engine is in the intake stroke, the intake valve will open and the piston will run downward, so that the combustible mixture can be sucked into the cylinder.

When the engine is in the compression stroke, the intake valve and exhaust valve are closed, and the piston will move upward to compress the combustible mixture.

When the engine is in the power stroke, the intake valve and exhaust valve are closed. At this time, the spark plug ignites the combustible mixture, and the combustible mixture pushes the piston to move downwards, so that the engine outputs power.

When the engine is in the exhaust stroke, the exhaust valve will open and the piston will move upward, so that the exhaust gas in the cylinder can be discharged.

When the engine is running, these four strokes will be circulated all the time.

The four-stroke engine has higher efficiency and lower exhaust emissions.