Fulcrum2111

Hello I have a new Da50 engine that I am running and has nearly no use. I have tuned it but the problem is that my RPM wont pass 6000 no matter what propeller I use in the engine range. The iddle is fine and the transition is good too but the top RPM seems too low. I have used the following propellers with the same results +/- 200 rpm.
2 blade: 22x8 menz 22x8 mejzlik
3 blade 20x10 biela and 20x10 mejzlik
I have checked the ignition abttery is fully charged and the throttle servo has full travel.
Any ideas?

kmeyers

Sure I have ideas.
What muffler? What fuel? What oil ratio? Are those carbon fiber props? You say new, how many minutes of run time?

Truckracer

My Feedback: (19)

Check to see that the ignition sensor is plugged into the ignition box pigtail correctly so the wire colors match across the connector. If backwards (yes, it will go backwards) the engine will start and run but at low RPM.