650sx (6)

This time I decided to do my last major upgrade to my 650. Oh yes I am talking about putting a high compression head on my ski. What this does is gives the jet ski high compression in the cylinders and add more horsepower. It is pretty simple to install just take off the old cylinder head put a new gasket on then put then new head and tighten it down. You may have to tune your carb to the new head though because of the change in compression.