Having a few problems with a 03 125. Difficult to start, especially when warm and left for a few minutes, and lacking in bottom end grunt and general power. Goes with a push with very little effort. No smoke. Engine sounds to be 'labouring' a little. Inspection of reed valve suggests the one flange in not closing properly. What symptons could I expect with this scenario.

when starting try tilting it to one side more and try it then it was mentioned in another post and i tried it on my friends and started straight away not sure about your other prob.