Running the F23 on my AirBike and have 48 hrs as of 7/5/18. Has always run great, and even better now that I worked out the exhaust arrangement (heavier gauge mild steel, proper angle for the AirBike, 21" from cylinder to tank front, with some flex pipe for vibration mitigation; looks and sounds a lot better, too). The motor always starts up right away; even did after sitting thru the 5 months of winter. I have the prop pitch set for better cruise, so my climb outs are a little weak, but pulling back throttle and cruising at 5000 rpm gives me 65 mph easy. I use 91 octane with 90:1 mix of BlueMax oil from Recreational Power Engineering (RPE) in Tiffin, OH. I recommend you checking out the RPE website and talking with Matt Dandar there to get good scoop on the motor.
Here's some pics.
|
Logged
