Originally Posted by Didier

Thanks guys. It seems I am the only one using 2S Lipo and have ignition problems.
The shop where I bought the engine says now that Saito recommends to use only a small lipo (2S <1000mAh) or Life or regulating to 6.0V
Anyway, maybe the battery is in the end my problem although in the manual of Saito the battery must be between 6-9V.