Inlet/Exhaust Valve – 19/16mm – YX 50


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Genuine YX engines part.

Will fit - YX50 engine

Typically fits engine codes - 139FMI, 1P39FMA

Included with the kit
Pair of inlet/exhaust valves

Inlet valve
Valve diameter - 19mm
Valve length - 69mm
Stem diameter - 5mm

Exhaust valve
Valve diameter - 16.4mm
Valve length - 68mm
Stem diameter - 5mm

Please check the dimensions against your engine before ordering.

Note; Valve seats may require cutting and guides honing upon installation.


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