Originally Posted by
Truckracer
The higher voltage A-02 #4 ignition is very different creature than the earlier A-01 #4 version. Though they share the same #4 designation, the later version has a very acceptable advance curve. Look on the label to see which version you gave.
I received the new #4 ignition yesterday. I installed it along with the optokill I had removed based on advice from another flyer. The engine started and with minimal tuning on HS screw I felt I was ready to maiden. I put kill switch on spring loaded bind button. It tested well so without further adue I decided to maiden.
Had a wonderful, hands off maiden flight going right up until I had no elevator! I have been through the process with 8-10 electrics and this was my first gasser. I don't think I have ever had a better flying plane on first flight. I was not having to give any up elevator or doing anything but big, lazy figure 8's when elevator servo crapped out. I honestly am not sure how I got it inverted, but once at crash scene, I still had aileron(s) but no elevator or rudder. Pretty bummed since I have been pulling my hair out for 2 weeks just trying to get engine to run right. I wish I had put the high torque, metal geared servos I have in the cabinet while I was waiting on ignition to be delivered.