ORIGINAL: ameyam
Actually, I was told by some of the more experienced guys on field that they found the 75AX difficult to tune, especially on cold days. The price difference between the two is about $10 here and it gives me the option to move to a 90 size plane, provided it lasts for more than 1.5years. My concern is, will the Phoenix tiger60 take the 91FX?
Ameya
Difficult to tune? Hmmm.. never ran into that. Once I set it, it needed one or two clicks either way at the beginning of the day and it was set to fly, all day. Even when new, any of the OS AX series both tune easily and start very quickly. In fact, a hard slap in the reverse direction on the prop will start it up even when cold. Subsequent tuning often is not even necessary.
CGr.