This is the HPI Fuelie K26 1.6 cu in (26cc) Gasoline Engine used with the Baja 5B, 5T and 5SC series. Pull starter Primer, choke and kill switch Two stage foam air filter Two year limited warranty, USA, Canada and South America only HPI Fuelie K26 1.6 cu in (26cc) Gasoline Engine with NGK CMR 7H spark plug, air filter housing with two foam filters, muffler, plug wrench and instruction manual Unleaded Gasoline: 87-93 octane, mix gasoline and two cycle oil at 25:1 ratio Pre mix 2 cycle oil Carburetor Settings-IMPORTANT Do not adjust the carburetor before break-in. The carburetor is set slightly rich from the factory. If Top Speed is Slow-turn high-speed needle a maximum of 1/4 turn from factory setting. If vehicle accelerates slowly, turn the low-speed needle a maximum of 1/4 turn clockwise from factory setting Rotate high and low speed needles only a 1/16 of a turn at a time. Do not make large adjustments. Spark Plug Gap: 0.6-0.7mm Displacement: 1.6 cu in (25.4cc) Maximum Power: 2.7 horsepower @ 13,500RPM Maximum Torque: 0.165/10500 kg.m/RPM Maximum RPM at non-load: 22000 RPM Weight: 4.5lbs (2.04kg) Length: 6.2" (158mm) Width: 11.2" (286mm) Height: 7.8" (199mm) jxs 11/20/13 ir/jxs &