Your vehicle is getting on and mileage is adding up? More than ever, it's time to replace your original cylinder head. The spark plug threads are usually stripped and the gasket surface is in pretty bad shape. The head gaskets are leaky, and performance is going down hill. We have in stock price worthy standard cylinder heads, that are equal to the original 1:1, as a matter of fact, there are some heads from PIAGGIO available. Measurements, performance and appearance are identical.
SIP-TIP: order new spark plugs and cylinder studs while you're at it.