When I first got mine cold starts were a nightmare with an on/off clutch action and difficult to select neutral until it had done a mile or so to warm the oil up a bit. After a few thousand miles it is now generally no problem but can still be a bit snatchy at cold starts. My "fix" is to engage 1st then give the throttle a couple of blips before releasing the clutch. This seems to free off the plates allowing an easier take off.
Thanks for the replies, sorry for not coming back sooner... No chance to try out the tips for a while !?!