Low compression hard starting
Briggs & Stratton 6? hp Intek vertical shaft engine, Model 120612,Type 0132-E2, Code 3902 20F. I am told Briggs does not make a direct replacement engine. Estimated 250 hours of use. It is used on a pressure washer.When last used it was hard starting but when I finally got it running it would only run on 1/2-3/4 choke with a little puffing back through the carb. I cleaned the carb (twice) with no change. Compression was about 30psi. The overhead valves and seats look OK. No grooves.Cylinder does not show much wear based on lip at top of cylinder due to ring wear. Should I just replace the rings or is there other possible problems? Maybe someone could point me to a replacement.