I just bought a beautiful Taylor Craft which came with a SuperTiger S2000 engine. My budget is shut so replacing the engine at this time is not going to be possible, which means I need to make this engine run if I want to fly the plane.

The problem is that the engine starts fine but as soon as it reaches about 1/3 throttle, and up to around 2/3's, it sputters badly. Past the 2/3 mark and it runs fine. We tried adjusting it for about 20-30 minutes and nothing we did changed the behavior.

To make things worst, I decided to take the carburetor apart for cleanning and forgot to note the position of the low end needle.

Can anyone shed some light on this engine?

Thanks,