You have a new engine, very well, after lots of considerations you decided for a new power plant. There are a few procedures in order to get from the engine all it have to give, in output power, longevity, idle characteristics and good throttle response. I will consider a few points in order to minimise problems and maximise performance:
- Nowadays r/c engines are build with very short tolerances, and so are very trustable pieces.
- In my opinion you should always follow manufacturer instructions above my recommendations.
- A new engine should run for more or less half an hour in special conditions.
- Since lubrication is part of the fuel, they should run "rich" in fuel, achieved by extra opening in the fuel needle.
- I myself prefer a richer in oil fuel for "run in" process and low "nitro" fuel, mostly because of the price.
- Usually I place a larger than recommended propeller in order to get a cooler run.
- I use a new glow in new engines, but this is not necessary, important is a good glow for the particular engine.
- After checking correct fuel supply and correct glow plug power is time to start the engine.
- After engine start we should place throttle around half way and open the needle to prevent high rotation.
- Then search for maximum throttle we relatively low rotation, by jogging with the throttle and the needle simultaneously.
- No need to pay attention to any other adjustment for now.
- For more or less minute to minute we should close the needle a bit in order to get a momentary increase in r.p.m.
- This should be done for a 20 minute run and then is possible to gradually increase high rotation time.
- Then we a usual fuel we should leave moisture richer than maximum rotation adjustment and fine tune idle.
- This "rich" adjustment is recommended in first half to one hour flight.
- Only at this point we are ready to get the maximum from the engine by setting all adjustments to best performance.
- Avoid starters, hand start is much healthier for the engine, don't use far from recommended propellers, as well as fuels.
- Without problems nowadays engines have a very long expected live, I have a 15 years old and already dead O.S. FP .40 that burned more that 200 litres fuel for more than 500 hours, I only removed the carbon residual twice. It's quite considerable for such small piece

general
General issues,		New airfield
new airplane,		New airfield
new airfield		newr
new radio		 newe
new engine		My Engine Reviews

- O.S. 40 FP
- Irvine Q72
- Irvine .36
- Webbra .50
- ASP .46
- SF .46
- Saito 150