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Follow the top radiator hose to where it goes into to top of the engine and there is a housing the hose slides onto. Loosen hose clamp and remove the hose and there should be two bolts holding the housing in place. The thermostat is inside this housing. Becareful and remove the hose when engine is cold and has no pressure as you can receive a bad burn otherwise also make sure you install thermostat the right way up.
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