Engine mount assembly created, enlarged 4 existing 1/4 holes to 5/16. All bolts torqued to spec (ref; page 1-23 )except one indicated as finger tight until a later step. Rotax engine mount studs were removed using two nuts locked together since engine mount bolts are supplied with the kit. Spark plugs installed and torqued properly. Exaust manifold attached to power plant. Muffler attached to manifold and safety wires installed inside each spring.