Originally Posted by
Roelof
Not stable could be other things:
- bad sliding carb
- binding on the throttle movement at the servo (use an extra return spring)
- bad servo
- bad neutral pont servo (trim)
- leak in exhaust system
- leak in tank (cap)
- leak in fuel/fressure lines
I suspect the carb is factory defected, the servo is new and in netural prefectly. exhaust, tank and tubes r fine when I use the other engine.