SPECIFICATIONS* Engine Type .. Al-Gooled, 2-Cycle Displacement. . . 28co (152 cu, in) Spark Plug Gap. 0.026 In, (0.685 mm) Spark Plug. Champion® RDJ7J or equivalent plug « Fuel's Mixture 401 851l oz, 251 mb 1314 Ibs. (5.9 inches (66 cm)y Bar and Chain (207 mb) .8in, (20.3 om) v 3/8in. (9.5 mm) .. 0.043 in. (1.1 mm) Lubrication (engine) Fuel's Ratio Fuel Tank Capacity Approximate Unit Weight (no fue! or chain oif) . Approximate Length (fully extended). . .. Extension Boom Length ..