Takegawa racing valve springs for YX and Z 150/160cc engine

From the Japanese manufacturer TAKEGAWA, a specialist in high-level preparations for Honda CRF engines and their Chinese replicas, YX and Z 150/160cc, we present the racing springs.

These springs are harder. They are specially designed so that engines seeking maximum power do not experience valve lift-off from the camshaft.

This means that with the standard spring, at high rpm the valve loses contact with the cam. This causes the valves not to close properly. It is simply observed that there comes a point where it cannot increase rpm any further due to leaks. But it can also cause impacts between the valves and the piston, which would result in the breakage of multiple components in sequence.

In these details, it is worth spending a little more and having the guarantee of a quality Japanese or European product rather than risking a complete cylinder head and piston failure. With these springs, you will see that the engine will not limit your rpm and you will be able to achieve the maximum power from the engine.

This is one of the first things to upgrade on a Pitbike engine, together with the carburettor. Reinforced springs