YOU MAY have to TIGHTEN the cable adjustment(tighten - 1/16" or LESS) a BIT MORE than PROPER at the cable to handle adjustment UNTIL clutch BREAK-IN.... and it will..... Then it will LOOSEN and NEED another adjustment after 200/500 miles any way... UNLESS you use the TIGHTEST adjustment NOW, the clutch plates like Hoop said will drag a little... and neutral is usually hard to find at first..
THE OTHER QUESTION I have to MOST??
have you changed the clutch handle OR BENT it??
OR have you added (modified) different GRIPS to change the ORIGINAL distance PULL on the handle?
OR like some do,,,, put a leather wrap ON the grip or clutch handle?
I bet just a small amount (tightest at lever-cable) is needed to get it to shift at a STOP...
IF you TRY at "0" play(cable-handle adjustment),,,, JUST TRY and SEE,,,, IF IT will shift fine,,,, then normal BREAK-IN is the PLAY!
signed....BUBBIE