G'day to you all. So now a Rizatto Califfo Deluxe is in care of me...Its a beautiful machine. Its mint with 99 miles now. But as new as it is it leaves me frustrated. Why? Heres why? Well I assume the ped can go at least 30 mph since the speedo reads 40 max. Well at just 20 mph it bogs and doesn't go beyond 20 untill........I removed the air box from the Dellorto carb leaving the air filter still intact. From this point it did take off. I think I reached a very smooth 34 mph. Much faster than my Puch Maxi. It felt a little too fast. (I'll get used to it). Is this practice gonna kill my engine? Should it be running that fast with the air box left on. I mean it really shouldn't need any adjustments. I though that after I cleaned the thank it would run fine. So......will my engine survive?