It sounds like a Goldberg Anniversary Edition Cub. If this is the case, the 46FX is the likely engine, and a great match for the airframe. Run a few tanks through it before flying it. If it has been sitting around for a while, there may be dirt, etc, inside. A good starting point for cleaning would be the carb. If it is open, and you can visibly see dirt inside, chances are that there is dirt inside the engine as well. Don't turn the prop over, as it may grind dirt along the cylinder liner. I always find the hardest part is re-assembling everything, so photos can be helpful! <div>
</div><div>Graeme</div>