Engine Fuel Guide.pdf

Fuel is a mixture of commercial regular gasoline and reliable oil for 2-stroke engines, with a volume ratio of 15-20:1. The engine uses a 15:1 mixed fuel for break-in, and any damage caused by fuel with an oil ratio lower than 20:1 is not warranted. Gasoline with ethanol should not be used, as it may cause power loss and corrosion. The engine has a bore of 22.4mm, stroke of 16.2mm, displacement of 19.18cc, and weight of approximately 950g. The practical speed range is 1,800-10,000rpm, and the maximum speed on the ground is 9,000-10,000rpm. The recommended propeller is APC D13” x P9” to D15” x P6”, and the spark plug is 1/4-32 SP-1. The ignition system requires a battery with a voltage of 6-9V and a capacity of more than 1,000mA. The engine has a firing order of #1-#3-#2, and the tappet clearance should be checked and adjusted after break-in and every 2 hours. The main needle should be set to approximately 1 turn open from full close, and the slow needle should be set to approximately 7-8 turns open from full close. The engine comes with standard accessories, including a muffler set, ignition system, and spark plug, and optional parts, such as a digital tachometer and limit gauge.