OS 37 tuning problems on Raptor 30V2

[shails]

Got a new raptor 30V2 and fitted with OS 37 engine. use 15% nitro. At one and a half turn open needle the engine is getting more fuel.

Closed the needle half a turn and the engine started behaving well. But I am scared that the engine is running to lean and might get destroyed.

Not much smoke seen. Broke the engine with at least 4 tanks before installing on the heli. Want to run the engine rich to give it more life. What is the solution. :bomb:

Shail

[BarracudaHockey]

Put your finger on the backplate and see how hot it is right after you land, if you can hold it there 5 seconds or so its fine, if its cold you can go leaner, if its too hot to keep your finger there 3 to 5 seconds its too lean.