I repeat....

All model airplane engines are the same 200-220 with 240 and up too lean and below 200 too rich. Check on the back of the cylinder with a IR temp gun or use spit, does nothing too rich, bubbles just right, boils off fast or "jumps" off too lean. All in degrees F, sorry...

Head or back of cylinder, hottest spot.... Checking backplate doesn't give accurate info and who calibrates their fingers? Low end setting, pinch the supply fuel tubbing at idle, should run with no change for 5 seconds. If it cuts out sooner you're lean, takes forever then slowly speeds up and dies rich...