CuriousJojo100
New Member
Can a f2 thrust exhaust be modified to work better with these motors? I am running the “100cc” steel cylinder 2 piece jug. It’s been port matched, ngk “6” plug, upgraded carburetor(looks like NT style but cleaner, no primer button, red filter cover. I played with the stinger size by using epoxy and opening it up little by little between runs. Ran with the most power with the opening as big as it could be. Is the tip being cut at an angle having a negative effect? Powerband kicks at the very top of my rpm range