There�s a huge difference between the XTZ660 engine(3YF) and the XT660Z engine(11D): first is 5-valve and last is 4-valve. The 3YF engine is used in the MZ bikes, so can not be used in the 11D Tenere(I think!?).

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XT rules! Make the world beautiful, get a tattoo. Nick Curran R.I.P. '77-'12

XT660Z Tenere '08 http://dallastx.smugmug.com

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