They're the same as Quadra. I have a -41, great engine, although you could spend the rest of your life trying to hand start it. It spin starts in about 4 seconds, and then never misses a beat.
Mine had a spring starter too, when I first got it, but the spring broke in less than a year. It actually ran better after I took the starter out of it, but it has no choke, so it's a bear to prime.
U.S. 41 engines
