YMS needle valve assembly, type 1

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Needle valve for YMS-FORA, FORA, MM, ZALP, Buran, AKM and all other engines using 4mm housing for the valve. The valve is light press fit. For the installation you have to pre-heat the case to 120-130C and push the valve in.
For the de-installation you have to do the same thing - pre-heat the case to 120-130C and push, or slightly hummer out the valve.
The valve has very small pitch thread that provides engine's fine RPM tune. The needle is made of corrosion resistant steel used at surgical instruments.

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  • Manufactured by: YM Systems

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