Y4 250cc engine
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Y4 250 Engine Section
The Y4 was the first version of the 250 Stormers. They were produced from 1969 up to 1970.
The engines were a development of the Villiers Starmaker 250.
If you can't see the part you are looking for in this section you can look in the later Y4 mk 2 section. Parts are interchangeable.
The engines were a development of the Villiers Starmaker 250.
If you can't see the part you are looking for in this section you can look in the later Y4 mk 2 section. Parts are interchangeable.
