Engine Maintenance
Good maintenance and upkeep of the engine is an important step in ensuring its normal operation and improving its lifespan.
Unlike a four-stroke engine, the engine oil of a two-stroke engine is mixed proportionally with gasoline to form a blended fuel. During engine operation, internal components of the engine can be lubricated. Therefore, there is no need for additional use of engine oil for engine maintenance.
Articles related to recommended engine oil and the ratio of oil to gasoline. Please read "The Fuel of RC Airplane Gasoline Engine" on our website.
Check the tightening of each screw often, especially engine installation screws and muffler installation screws before and after a flight. Engine vibration during running may cause screws to loosen. Tighten the screws after each flight.
Fuel tubing throughout the fuel system should be changed periodically. If the fuel line starts to get hard, soft, or color change, there is a good chance it needs to be replaced. Keep in mind that the tubing inside your tank deteriorates more quickly than anywhere else in the system.
Check the exterior of the engine to make sure there is nothing wrong and wipe off any oil res and dust. The engine should be kept clean and free of dirt build-up.
Install a fuel filter to prevent foreign matter in the fuel container from entering the fuel tank. Clean these filters periodically.
The carburetor fuel screen should be cleaned periodically also. Carefully remove the pump cover, gasket, and pump membrane. The screen will be visible and can be cleaned after careful removal. Professional carburetor cleaning agents might be needed. If ever the carburetor seems to need frequent mixture adjustment or acts like it's starving for fuel, a dirty screen is a likely candidate for a cause. The carburetor should be inspected, cleaned, or reconditioned with every flying season or after being stored for a long period.
The spark plug should be inspected, and cleaned periodically and replaced if it is fouled or worn. A new plug with every new season is a worthwhile maintenance step.
Do not disassemble unnecessarily to prevent damage to parts or allow foreign matter to enter the engine.
When the engine is not to be used for a long period, remove the engine from the model, clean the outside then remove the carburetor, and plug all tubing. Clean inside the engine by rotating the crankshaft with the engine immersed in a container filled with gasoline.After cleaning the engine, dry it well then inject a small quantity of oil used to mix fuel and rotate the crankshaft several times to distribute the oil well inside the engine. Then cleaning the carburetor with carburetor cleaning agents, install it on the engine. And place the engine in a dry place.
