at around the 35 second mark, you should begin *sequentially* backing off the choke, while applying throttle.
Prior to that in the video...I'm hearing an engine favoring 1 cylinder over the other.
By the one minute mark you should have been OFF the choke and ON some throttle, till it wants to idle on its own with no throttle input at all.
i'm thinking you need to up the idle adjustment a bit.
Where does it idle at when warmed?
You earlier stated you performed a valve adjustment, what were your findings?
And solutions? You are SURE you performed checks at the precise cam positions?
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