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Old 13-11-12, 06:48 PM   #1
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Default Valve grinding on an sv650?

Hi all, first post, I have a problem with a k3 sv650 I bought, bike had been lying up for a number of years, so when I got it I turned it over by hand and found that the exhaust valves where leaking on the rear cylinder. On closer inspection the engine must have been lying with these valves open and a tiny bit of corrosion had formed on the valve seats. So popped the heads and barrels off and left them at a engineering shop, asked for the heads to have a light skim just to clean the surface and to grind the valves in. When I got heads back, I bought a gasket kit from suzuki, built engine together, turned over by hand and all 8 valves were leaking. So, pulled heads off again, ****ed off at this stage, dropped them back at engineers, waited to get them back, got them, rebuilt and guess what? leaky valves.

So, are k3 valves coated in something that they cant be lapped in or ground in? Im a car/van mechanic so know my round an engine. Just havent a stack of experience on motorbike engines.
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