If everyone else is so sure it's not injected, make a bet. Then pull the cover on the right hand side and collect.
That is not a choke pull knob on the left, it is for a fast idle while the motor warms up. The idle adjuster is just that, it raises or lowers the idle RPM.
Since you're interested in changing intakes, take a look at some of these Bad Ace intakes...http://www.riderforums.com/search.php?searchid=438797
Along with some of Paul's other goody's...http://www.riderforums.com/search.php?searchid=438801
