Evolution 45 mag question
 

This engine is mounted in an Extra 260 by H9 and after approx. 30 minutes run time on the ground, when range checking with the engine running, I experienced severe radio interference twice. I took it home and it runs fine with no interference issues. Has anyone had intermintent ignition module problems with this engine? Also, when cold, I have to prime it directly to get it started. It does not want to prime with the choke. Any solutions before I send it back? Thanks.