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cylinder head needed


GeeTee
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I'm trying to track down a serviceable cylinder head for my 2003 Sherco 125 ST. They are no longer available in UK as a new part and the later 2005 onwards head won't fit my engine.

The inner o-ring seal groove has collapsed into the water channel above, just below the hose spigot (probably due to corrosion), and leaks compression straight into cooling system

I don't think  a weld repair is possible due to thin, cast aluminium material in head. It would also need a lot of machining afterwards to restore groove 

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37384720_2559394717419440_8563350763072389120_n.jpg

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I'm not going to spend 200 quid to convert a 125 to an 80

The 200cc head has a different combustion chamber shape

I've tried Richard Allen, Spiatshop and Trials bike breakers uk - zero 2003 heads available new or used so I'm screwed

Plan B is to fit a spare 1999 spec 250 engine i have into the frame. Without a head the 125 motor is junk

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