I have a John Deere 320 and a Jacobsen Sno-Burst and I think they both have the same Tecumseh 3hp motor, correct me if I'm wrong. The JD doesn't have the power burst like the Jacobsen, but it does say max rpm should be 4300. Should the Jacobsen run the same max rpm? Are these motors any good? What can be done to get the max power from these 3hp motors?