I have a Honda 10hp model B100S S/N 1300635. Any information would be helpful. I don't know how you read the oil dipstick. there are 4 or 5 marks that are marked 500. 700. 900 (not sure if these are the right numbers) with spaces in between. where should the oil level be. Is there any place on the internet with information on this motor. Any help or information would be great, Thanks