Hey guys new to the bergs and I have a small problem that I just want to make sure isnt something I should look into further. My berg cold starts ok but then when I shift into gear it hops and stalls with the clutch lever pulled in. I have tried pumping it up and moving back and fourth but it doesnt help. I have found that reving the engine up and shifting with the rpms up there is ok it does a little tug and after the first time it is no longer an issue. I have to do it every time I start it cold. Once again after the first time it is not a problem and I am not in tears or anything I just want to be sure its not something I should fix before it does cause something that makes me cry. Any advice anyone can offer will be a huge help thanks a lot.