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utopia · 13-06-2020, 03:42 PM

I think I'd be inclined to double check that the exhaust valve is straight by lightly lapping the valve seat and then checking to see whether you get an even, grey colour all round ... ie full contact.

13-06-2020, 03:42 PM	#12
utopia No turn left unstoned Join Date: Jun 2010 Location: leicester Bike: M750 Posts: 4,545	I think I'd be inclined to double check that the exhaust valve is straight by lightly lapping the valve seat and then checking to see whether you get an even, grey colour all round ... ie full contact.