Ok Iam in the break-in procedure of my new engine. I am running my engine very rich right now to the point when I point my planes upwards I can see of stream of oil flowing out the muffler.
But the engine runs fine between idle and high idle throttle but when i raise the throttle any higher than the midpoint the engine dies out.
Am I running too rich or am I still lean ??

I really hope that's a ringed engine...

What kind of engine is it? If it's an ABC type engine, it might not ever run like it should because of an improper break-in. You need to lean that thing out and follow the directions that came with it (unless it's an O.S. engine).

Sounds like you might not be using the right fuel either...What kind of fuel are you using? What engine? What prop? We need more info...We can help you A LOT more once we know more.

My new O.S. engine manual completey skipped break in all together.

Basically it skipped right from setting the carb to fly it on the first tank in one sentence.

it's a megatech m46 engine .46 .. it's ABC.
15% nitro and 18% oil (80/20 synthetic castor)

it's the stock prop that came with the engine. I believe it's a 10/6

Since it's an ABC engine, you NEVER want to run it slobbering rich. It needs to reach operating temperature and get there quick and easily for proper break-in. It might be too late for that...

Just lean it out a little until it's a pretty clean run, but still very rich with a lot of smoke coming out of the muffler. Run 3-4 tanks through it there letting it cool off COMPLETELY between them. Never run it slobbering rich, but NEVER lean or even peaked out. It could end up running great...Just get some time on it letting it cool between runs.

See if it still dies when you put the nose up after you get a couple more tanks through it, then we can start diagnosing the problem...If there still is one.

For break-in you've got the right fuel and prop, so there is nothing to worry about there.

I just read your original post and see that you've never made it to full throttle! There is NO WAY to properly break it in unless you can get to full throttle. I hope you didn't run it for too long...

Check your fuel tank and replace the lines. Make sure it's even or a little below the carbutator.

Turn the main needle our 2.5 turns and just run it there.

I HIGHLY recommend that you take it to the local field and get some experienced engine guys to take a look at it. You will be glad you did in the long run and there is nothing better than hands-on help.

If you can get help at a local field, do it!

As has been mentioned, DO NOT run an ABC engine rich! You will wear it to the point of no compression fairly quickly.

You should lean it to a decent 2 cycle run, not breaking into a 4 cycle, but only for 3 to 4 minutes (full throttle), then it needs to be shut down and allowed to cool completely. Repeat this through 3 - 4 tanks.

You want the 2 cycle run to get this engine up to normal operating temperature, let it run there for a couple minutes, then shut it down and allow it to cool (enough so that you can comfortably put your hand on it). Repeat.

An ABC (or ABN) engine has a tight piston to sleeve fit (often nearly too tight to turn over when new). The sleeve expands more quickly when heated resulting in lower (operating) compression. Running rich prevents the sleeve from expanding, and piston against sleeve friction wears the sleeve out quickly. The result is very little compression. (Bad for any engine.)
Dennis-

Coming from the Nitro Truck background when I broke in my ABC/ABN engine for my Superstar I used a modified version break-in detailed in RC Nitro mag for cars. What it came down to was 3 (1 min) runs full throttle while tracking the temp. The I moved to 3 (2 min) runs in the same manner. Then I went to 3 min runs until I had roughly 40 mins of time on the engine. The whole time keeping the engine betwen 210 to 230 degrees and allowing the engine to cool between each run.

I followed this procedure for a OS .12CV-R for my truck and for my .40LA and both engines now scream and are very relaible and easy to tune.

thanx people.. will try to play around with a little more.