4hp Petrol Engine Pull Start NH130 (COMING SOON)Petrol Engine 4hp. This rugged 4hp petrol engine great for cylinder mowers such as Alroh or Scott Bonnar mowers up to lawn edgers and small plate compactors. Quality and durability are nothing without support. We carry spare parts and give an industry leading 2 year warranty on design, assembly and materials to ensure you get simply the very best support, whenever you need it. NH130 will fit a wide range of applications where you need a small petrol