New Owner - need top end advice

Hi guys. Just signed up today as i found this place to be the best for info on the WR series.


I've just bought a non-running wr400 (1999) which doesnt have a piston/head as it dropped a valve and the guy has since sold it on.


Im struggling to find a wr400 barrel/cylinder head in the UK, and i was wondering if the YZ 400 head/barrel were the same?





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