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Can I fit an E model cylinder head on an S model bike

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Hi Guys, have had a valve break, tore up the head pretty bad, everything else is OK, have bought a new head on Ebay, but just realised it from an E model, my bike is a S

Will it fit ok?

thanks

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head is coming complete with cams and valves, so wont have the auto decompressor, does that mean i'll have to install a manual one anyway?

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The E should have the decompresser and even without it, the bike should tum over fine. BB and strokers with higher compression might be trickier and require being set up on the compression stroke first.

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Ive fitted the new cylinder head all seems to be OK so far.

There is a pipe coming out just next to the carb inlet, not on the S version, what do I do with that? when I turn the engine over it is puffing away like me granny on 60 a day, and occasionally popping a little flame out, not normal i dont think!

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Guess it's the vacum nipple ,you can put in a bolt of proper size instead ,or plug it with a hose and a screw

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Once again, thanks for all your help.

The bike is back to fully running order, cheers!

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