I was hoping someone could tell me how I might be able to get more power out of my 1978 Garelli Super Sport XL without major work. It feels like it has more but is being restricted when I reach top end (around thirty). I also need to know what kind of oil I should be using to mix. My manual says only Garelli, but what is an appropriate substitute. Is it better to just premix, instead of relying on getting the correct number of pulls from the oil reservoir? Sorry so long but, I just bought this ped, and dont want to tear it up. I haven't owned a ped since 1985, and its great to see that people still find them as fun as I do.