Hey gang...

I'm running two planes, with two different engines... Magnum .91XL and Super Tigre G-90... I pretty much completely forgot how to dial these engines in for peak performance/proper mixture.

On the Magnum, it is in a CG Extra with a 14-6 Master Airscrew Prop. This is a used engine and came with the plane when I purchased it. It ran fine, but I had to get a new carburetor for it, as I broke the low speed idle needle valve (on the throttle side). I put it on, thinking it was set to factory specs... and I can't keep this plane running. The engine is rich I feel.

On the Super Tigre, it's in a Seagull Edge 540v2, with a 14-4W APC Prop. This engine started right up and runs fine, but the throttle response is sort of delayed and I can't seem to make myself happy.

For both engines, what is a good starting point to get these dialed in and running right? I'm thinking about closing all the needles, and then starting at 2-3 turns out on the high speed side, and one to two turns out on the low speed... Is this right? Any one have a better grasp on fine tuning?

The supertigre was nearly new, just a few tanks through. With the prop, and muffler... it's a lot more quiet and feels stronger than the magnum. The magnum has a pitts style, and was used. Both have good/tight compression and the cylinder walls dont have any scratches to indicate bad rings. These were also oiled and and covered prior to having them sit, and i shot more oil in before I started them just to keep things up and up.

And for the haters... Yeah I prefer O.S., but the budget doesn't allow for new engines just yet