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

From the Japanese manufacturer TAKEGAWA, specialist in high level preparations for Honda CRF engines and their Chinese replicas, YX and Z 150/160cc, comes the racing springs, which are harder.

these springs are stiffer and have been specially designed so that engines that are looking for maximum power do not encounter valve lift on the camshaft.

This means that with the standard spring, at high rpm, the valve loses contact with the cam. This means that the valves do not close properly. It is simply observed that it reaches a point where it cannot go any higher than rpm due to leakage. But it can cause impacts between the valves and the piston, which would lead to the breakage of multiple components in the chain.

In these details it is worth spending a little more money and having the guarantee of a Japanese or European quality product than risking a general breakage of the cylinder head and piston. With these springs we will see that the engine will not limit the rpm and we can get the maximum power from the engine

It is one of the first things to touch in a Pitbike engine together with the carburettor. Reinforced springs