when i'm riding and i just _slightly_ increase the throttle from the off position, the bike will jerk about some and start
accelerating. The same with rolling off the throttle
before to start this thread i've been reading all the posts about throttle
somebody said "throttle "jerkiness" are really just inexperienced riding technique"

 

That is just something you are going to have to get used to.The throttle is really touchy at low engine speeds and is basically the nature of the bike. I have gotten rid of it over time by training my throttle-hand, but it catches me off guard sometimes. I also think it helps to have a properly adjusted chain as well.

 

i checked the chain - is fine...
I have PCIII but i think i should reset it or readjust it
the only way i can ride it smooth is to take 2-3 seconds to roll the throthle very very gently[:@]
the fact is that i had an F4 before and the difference is huge!!! i mean, being so touchy

 

Yep, it's "normal." Not good, but normal.

 

A little hesitation coming on throttle from idle is normal, and is a good reason to carry a little thottle all the way through a turn (slightly open, not idle).
But 2-3 seconds doesn't sound normal to me at all.

 

Make sure chain is tight, but in lower gears until you get into the power band a hesitation is normal.

 

the chain is tight,
and maybe isnt 2-3 seconds, but is that point in middle of the 0 position and xx position and kinda runs ****y, is almost undetectable, but if you pay attention and you get the throttle in that point you can feel it, is a tiny bit but it is, so im thinking that i should change the map on PCIII, or to try set someway the throttle in there