Not idleing

[Tarant]

OK my engine was not worn out I had the head screw loose. well now it has pinch and compression.' So I took it outside and fired it up and it would not start ,So I gave it some throttle and it sarted I let it get to temp and it ran fine,
So it runs great but has one big problem I can let it Idle if I do it dies I have made the idle gap bigger and smaller, I have turnd all things to factory settings, What is wrong,

P.S. could old feul cause this

 

[racin_38]

old fuel will definatly cause tuning problems ,
try some new if you got some or get a little off someone just to try ,but if you know its old ,recycle it or keep it as a parts cleaner and buy new

 

[Tarant]

tunning it is not my problem It just wont idle, But I will get some new fuel to see ay body else have any othert suggestions

 

[.21Rc10GT]

If it wont idle, it is a tuning problem, unless you have something internally worng or an air leak.. or a bad glow plug? The low speed needle may be too rich.. try leaning it about 1/8th turn.