On my recently purchesed F2 I suspect it may have been dropped at some point, tiny scuff on the exhaust, small crack in on of the fairing panels (possibly called inspection panel?) and if I put a bar end on the throttle will stick in position.
Can I fix this somehow ?
Has the internal threads been pushed in a bit ?

Another quick one, is there names for each side of a bike like there is for a car or boat ? Offside/near side, Starboard/Port ?😀

 

It sounds like to me the bar end is not all the way in until it binds up against the throttle tube, maybe a thin washer or more between the bar end and the thing it screws in to. To take up space, that way it should tighten up before it squeezes against the throttle tube. Also make sure the grip aint squeeze against the "kill switch housing". If it is,lube it, that could also be a culprit along with a bent handle bar causing your "straight" throttle tube to bind on it. Generally, sitting on the bike right is right and left is left. I often use the phrases, "clutch/gear shift"(left) side and "brake"(right) side.