I have 3 DA60 and 1 DA70 and very pleased with them, using DA engines over 15 years . One of my DA60 on my pilot RC extra330SC 92'' +MTW RE2 pipe has a problem. Each time at the first start procedure 15-20 times hit but no result then a few times backward hit then engine starts normally, and insane power 24X8 CF prop 7.100 rpm 900 meter ASL. Afterwards all day each start is very easy and 1-2 flip . Nex week when I go to field again 15-20 normal flip then 2-3 backward flip after then hit backward starts normally



Anyone has idea?? what is the problem?