wylieruneyjr

With a big investment like a Jett engine it might not hurt to add a little pure castor oil , like two or three ozs. per gallon. If your engine is not smoking at full throttle, you should see aleast a faint smoke trail. Its important to understand that once the plane starts flying the propeller will spin alot faster in the air at speed than it does on the ground. Some say the prop unloads in the air, and jett engines unload alot, needing more fuel than it does on the ground. Sometimes running richer on the ground , plane not turning as fast on ground, is faster in the air, cause when the engine, prop unload they need more fuel, the more you got the faster it will go. So try your fuel, run rich, and look for a slight smoke trail. And once you do a full speed dive LOOKOUT for flutter, rapid back and forth movements of control surfaces, sounds like a buzzing noise, very bad, will rip your plane apart in a mil-a-second. And Jett engines can and do provide enough speed to cause this on some planes. What size Jett you gonna buy? I really like the sport 40, don,t over look this beast, its so fast, and bigger is not always needed. As far as temp, can,t tell you, never did a temp reading, however if the glow plug gets loose its to hot richen it up, if the engine head loosens up its to hot richen it up. and check this often til you learn this engine. Check muffler bolts, carb bolts as well, if anything is getting loose its too hot. Also glow plugs should last, if you are replacing plus after one to five flights you are too hot! Hope this helps.