Hi,
my post didnt work, so here again; my M20 valve springs are 3 mm shorter than the factory dimensions.
Is that a problem ?
Should i place a shim under them or is that no good ?

Yes it's a problem...No you shouldn't put a shim under them...Better to buy some new ones from Russell Motors, Draganfly Motorcycles, C&D Autos etc. etc...Ian

email (option): ian@wright52.plus.com