& maybe I should keep my opinions to myself... But some of the stuff he suggests in his book I wouldn't do if I were rebuilding lawn mower.. It's been tears since I read parts of his book, so I won't try pointing out specifics but it's pretty shade tree... Back when I took JC courses on engine machining & rebuilding there were plenty of good books available, fact is most of the best tech books are written using Chevy & Ford engines as the guide, but the main info is good & you just adapt it to your needs..