ORIGINAL: rctom
Yes, that's the right one. For a short time they sent out engines with muffler that had a 3/4'' outlet which did a lot to kill power.
TF
Good to know I got the right one. Incidentally, peak rpm was down to just below 6800 this morning. I've richened the high speed needle to give me 6500-6600 on the ground. I'm running 32:1 with Penzoil air cooled and am well into my second gallon of fuel. On the two flights this morning, the engine cut out at about the 2 1/2 minute mark (both dead stick landings were uneventful, what a floater!). The low needle is just over 1 1/2 turns out, high is right at 1 1/2. Do you think it still needs more break-in time? This is my first gasser and unfortunately all of our club's gas engine talent has moved away.