I Feel Fine (Recording Session), October 18th, 1964

October 18th, 1964.
Studio Two, Abbey Road. (4:30pm)
P: George Martin.
E: Norman Smith.
2E: Georf Emerick.

00:00 I Feel Fine (Take 1)
01:57 I Feel Fine (Take 2)
03:28 I Feel Fine (Take 5)
05:52 I Feel Fine (Take 6)
08:38 I Feel Fine (Take 7)
08:53 I Feel Fine (Take 8)
08:57 I Feel Fine (Take 9)

At approximately 4:30 pm at the October 18th, 1964 recording session, The Beatles recorded their first take of the song. After the feedback was recorded, John was seen having a little trouble singing the song for more than one reason. First of all it was in a key that was too high for him to comfortably sing and, second of all, he found it difficult to sing and play that distinctive riff at the same time. "Take one" broke down after about a minute, resulting in The Beatles remedying at least one of the problems by the time "take two" was attempted.
"Take two" brought the song down to a lower key which helped John somewhat, but it was still awkward to play and sing simultaneously. They did get through the solo section, but the guitar solo wasn't worked out yet so George just played the riff along with John during this section. Unfortunately, this take also broke down shortly thereafter.
"Take five" appears to be the first complete version of the song, although it still wasn't satisfactory for overdubs. Before "take six" begins, we can hear George Harrison rehearsing the guitar solo he will perform as an overdub a little later. This take shows The Beatles resolving the second issue regarding John's performance, the solution being them just recording a rhythm track without John's vocals, which would then be recorded afterward as an overdub. This take is also complete, but not satisfactory.
Three attempts later, on "take nine," they performed their best rhythm track, feedback and all. Over this, John recorded his vocals and then double-tracked them as well. Other overdubs include Paul and George doing harmony vocals as well as George's guitar solo.
-beatlesebooks.com