Hi dave. I think ive figured out the cause of my problem. When i turn the prop anti-clockwise the fuel is going away from the pump into the fuel tank. Whereas if I turn it clockwise the fuel is coming into the pump(the fuel lines are plugged correctly) So basically the reason the engine is not starting is because there is no delivery of fuel to the pump. An experienced guy at my field checked and said that the pump is not sucking any fuel and even if it is sucking it is sucking in forms of drops and not a constnt flow Do you think the pump has gone bad or is there any other reason? i even tried fuel with 20% nitro, 20% castor and rest methanol but still it wouldnt start. Twice it did start when i put some raw fuel into the carburetor but shut off after 5 seconds since the fuel was not being delivered properly. Please advise what to do the engine is brand new only 2 flights should i send in for inspection? if yes how much will it cost? thnx