Sorry I'm not totally sure what you are asking.

If the engine is getting to hot, you may too large or Propeller on it. You want the 63 to turn 10,500-11,000rpm.

If you are running 30% nitro fuel you should easily get these rpm readings using a 12-8 APC prop. Perhaps a 13-6apc.

The engine looks green inside, this is likely caused by the dye agent in your choice of fuel. If the fuel is green color this is where the green is comming from.

I don't know anything about your fuel. I live in the USA and run Cool Power 30% helicopter Performance fuel.

Troy Newman
Team YS Performance