ORIGINAL: luckyned
I need to learn the proper starting, break-in, and carb setting for this motor. Please send help. I bought a book that stated to back out the needle 4 turns but she seemed to spit alot of fuel out the muffler and if I close the throttle all the way she quits..which I guess is proper but got me wondering how you setup the engine when it is in the plane to never quit but to idle smoothly. How do you stop the engine when on the ground but never have it go below idle in the air!? I know..I'm like a machine gun with questions-sorry.
Hmm, lots of questions, where to begin?
Let's start with the search tool. One of the most valuable features of RCU is the ability to search. You will find a search box on the left, near the top when looking at forums. You will also see a search link in the rectangular bar below the icons on the right side of the page. This one takes you to a search page. I tend to use this one since it gives me more search options. The reason I mention searching is that you will find that many questions have already been discussed in great detail. Reviewing these past discussions will save you time, because you can get your answers immediately, rather than waiting for someone to answer your thread. It also helps other forum members by saving people from having to answer the same question over and over. Please do not take this as a suggestion that you should not be asking questions, that is not my intent. I'm mentioning this because while reviewing search results I often get answers to questions that I hadn't even thought to ask yet.
On to your specific questions...
Four turns open is probably way too much. I can't speak for ALL engines, but most I have used started at something like 2 1/2 turns open. I suggest NOT RUNNING your engine any more until you do have the instructions, or someone to help you. I believe it is an ABC engine, and running them "sloppy rich" means they do not get up to proper running temperatures. This prevents the liner from expanding the right amount, which can lead to excessive piston/cylinder wall wear. The result is an early death of the piston/liner, leading to an expensive repair, or total engine replacement. Here are a few threads which provide more on this subject:
http://www.rcuniverse.com/forum/m_19...tm.htm#1992096
http://www.rcuniverse.com/forum/m_13...tm.htm#1369094
There are many, many more
Controlling engine idle versus shutoff is done with the transmitter. For glow engines, there are two ways to do this, based on the features available in your transmitter. On a basic transmitter, you control the engine shutoff with the throttle trim lever. You adjust the servo to carb linkage so that high trim gives a good idle speed and low trim closes the carb, which shuts off the engine. A more advanced radio will come with a throttle shutoff switch. Flipping this switch will move the throttle servo to the preset closed position. On the Futaba 6EXA, engine cutoff is done by flicking the trainer switch twice. This closes the throttle and shuts off the engine.