You need to contact Kohler and furnish them your model and
spec numbers, as well as a description of your complaint. Kohler
stands behind their engines. Most serious problems are with the
dealer and blamed on Kohler. Find your area's distributor and
talk to the salesman and you will have some response, if your
distributor is like mine. At best, find another dealer, as this one
seems adept at taking your money.