Hi guys. I just purchased a 2002 aprilia rs125 second hand with around 20000kms on it. not sure if its been rebuilt or not. it has no problems when i take off after i start the engine but when i come to a stop after shifting down to first gear from whatever gear i was in and then try to take off on first gear it starts moving and then just stalls. and after that i have to keep trying many times to get it moving properly again. im even finding it difficult to find neutral. my friend said that it may be because im not in first gear yet but the same issue happened a couple of times even after i went down from neutral. i usually rev up to 3500 or so rpm before letting go of the clutch and this usually works for me from start off. i also noticed a couple of drops of oil from my exhaust. is that normal? my friend said it is normal and it may be just the 2 stroke oil but im slightly worried. any help would be appreciated guys. im new to motorbikes but im willing to learn about fixing them and im happy to spend my time maintaining it.