Thanks for the replies guys,
Just got back from a short trip to read the feedback,& feel slightly better to know others have had the same problem.
I just fitted a Scott oiler as well to give the drive train as easy a time as possible.
I'll slacken the chain a litle more & report back.
This week in & around Melbourne is forecast to be good riding weather so I'll put some K's on & see what happens.
Stay tuned.