RMR 125 Clutch Issues?

I'm having a seriously irritating issue that I could use some help with, sometimes when I'm pulling away just as the clutch gets past biting point there's a horrible grinding sound and it feels like the clutch slips,
Other times it's really sluggish and slow on the pull away even with higher revs.
These only happen on pull away and Ive tested it on a 2nd gear pull away and its the same. While riding though there's no problem what so ever I can change gear and use the clutch for whatever reason with no problem, any info would be appreciated the bike is a 2014 Superbyke RMR 125

happens only when its cold?

You NEVER know how much abuse in these old 125... Newbie often done some silly things on them. Replace ALL ***ed parts.If UK seller is too expansive. Give a shout & we can find the solutions from China...
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200 shop manual tells u the basic idea http://pan.baidu.com/s/1sjqfYlZ | Suzi RV125 give u the exact steps about engine http://www.crservice.dk/Suzuki_mc/RV125/RV125_01E.pdf
http://startright.co.uk/manuals/sinnis/apacheengine.pdf | http://startright.co.uk/manuals/sinnis/apacheframe.pdf Those starts w/ 157FMI often had Suzuki equivalent
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http://www.mychinamoto.com/forums/showthread.php?430 tells how

Quote:

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Originally Posted by prince666

happens only when its cold?

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unfortunately not, it just happens whenever, again only when pulling away