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Old 06-14-2010 | 12:51 PM
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Motorboy
 
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From: Bergen, NORWAY
Default RE: Running In

ORIGINAL: David Bathe

That's the way.
I just ground run a couple of rich tanks, then fly a slightly rich.
If it starts leaning out, land adjust and take off straight away.

Just listen, if you're not experienced enough to hear the difference, fly with someone that is and ask their advice.
The worse thing that people fear is a dead stick. If the sound of that frightens you, you need to practice.
If you have a decent flight plan/routine work out, a dead stick anywhere won't be a problem... only an annoyance!
To run the engine rich are not a good idea to running in the engine, the engine need temperature to expand the sleeve from taper to parallel. The modern engine with ABC/ABN piston/sleeve do not need a couple of rich tanks as in older iron engines in old days.

The engine get drops of oil out of exhaust (a little of smoke) + hot enough to touch the cylinder head means the engine are in good working temperature + enough oil to lube the engine parts.

The engine need tapered sleeve to keep compression when the engine are cold and will improve starting and do not need tapered sleeve when the engine are allready in use since there are enough to keep compression in a short time between each turn of crank rotation while the sleeve are in parallel.