If its a new engine, the high speed needle needs to be adjusted in combination with the throttle until you can get it to full throttle. Leave the glow igniter on it until you get it to go to full throttle. Once you get it to full throttle, get it peaked and then set it rich and remove the glow igniter. Then follow the break in procedure.

After a few tanks of fuel you can start worrying about adjusting the low end. The TT Pro 46 is one of my favorite engines, and they are very reliable once you get them tuned.

Brad